Amazon PPC Case Studies: How We Doubled Seller Revenue in 100 Days

Want to see how brands like yours achieved 2X growth? Request Case Study Access.

Growing an Amazon brand in 2025 is more complex than ever. Every seller is fighting for visibility, ad costs keep rising, and organic rankings now depend heavily on PPC performance. Because of this, many brands come to us feeling stuck — spending a lot on ads but not seeing real growth.

At eCom Managers, we’ve helped 100+ Amazon sellers turn their accounts around. In this article, you’ll see real case studies, including the problems sellers faced, the PPC strategies we used, the improvements we made, and how their sales doubled in as little as 100 days.

These case studies are based on actual brand results and fundamental strategies we apply daily.

Case Study 1: Home & Kitchen Brand — 2X Revenue in 90 Days

The Seller’s Problem

A Home & Kitchen seller reached out with several significant issues:

• Their ACOS was extremely high at 48%
• The ranking was dropping every week
• The conversion rate was low
• Cost per click kept increasing
• Campaigns were messy and unorganized

The seller was frustrated and said,

“I don’t know why my ads are spending but not bringing sales.”

It was clear that the campaigns were not properly structured.

What Strategy Did We Use

Step 1: Keyword Harvesting

We analyzed competitor keywords, missing keywords, and high-performing search terms. The seller wasn’t targeting many important keywords, which was hurting their ranking.

Step 2: Full Campaign Rebuild

We rebuilt their PPC structure into:

• Auto campaigns
• Exact keyword campaigns
• Ranking-focused campaigns (Top-of-Search)
• Product targeting campaigns

This helped Amazon understand the product better and show it to the right audience.

Step 3: Negative Keywords

We added over 45 negative keywords that were wasting their budget.

Step 4: Listing Optimization

We improved the title, main image, bullet points, and backend keywords. A stronger listing improved the conversion rate.

The Results After 90 Days

Within 3 months:

• ACOS dropped from 48% to around 23%
• Conversion rate increased from 12% to 28%
• Monthly revenue nearly doubled
• Organic ranking moved from Page 3 to the Top 10 positions
• Profit margins became stable and strong

The seller messaged us saying:

“I didn’t think it was possible to lower ACOS and increase sales at the same time. This is the best PPC work I’ve seen.”

Case Study 2: Beauty & Personal Care Brand — 3X Sales in 100 Days

The Seller’s Problem

This brand was heavily affected by competition. They struggled with:

• High CPC due to competitive niche
• Low visibility
• No Sponsored Brands or Sponsored Display campaigns
• Weak keyword targeting
• Almost everything is running on auto campaigns

Because of this, their ads were burning money but not generating enough profit.

What Strategy Did We Use

Step 1: Ranking Campaigns

We focused on the most critical 10–15 keywords. These keywords had high buyer intent and good search volume.

Step 2: Sponsored Brands Video & SB Ads

Video ads work exceptionally well in Beauty & Personal Care. They get higher click-through rates and lower CPC.

Step 3: Retargeting Through Sponsored Display

We ran retargeting ads for shoppers who viewed their listing but didn’t buy.

Step 4: Improved Creatives

We guided the seller to upgrade:

• product photography
• infographics
• brand story
• A+ content

Better creatives increased their conversion rate.

The Results After 100 Days

After 3 months of daily optimization:

• Monthly sales grew from $9k to nearly $30k
• ACOS dropped from 41% to around 25%
• ROAS improved significantly
• Keyword rankings moved from Page 5–7 to Page 1

The seller said:

“I can’t believe how visible the brand is now. Even my organic sales doubled. Amazing transformation.”

Case Study 3: Pet Supplies Brand — From Losses to Profit in 70 Days

The Seller’s Problem

This seller was spending more than they were earning. Issues included:

• Extremely high CPC
• Campaigns targeting extensive keywords
• No negative keywords at all
• Poor campaign structure
• Daily budget overspending
• No clear strategy

They were spending about $180 per day but earning only about $110. They were ready to quit the product.

What Strategy Did We Use

Step 1: Bid Optimization

We reduced bids on non-converting keywords and increased bids on profitable ones.

Step 2: Negative Keyword Mining

We removed more than 70 irrelevant search terms that were draining the budget.

Step 3: Competitor Targeting

We created product targeting campaigns against competitors with:

• lower-quality listings
• higher prices
• weak reviews

This brought cheaper conversions.

Step 4: Budget Reallocation

We moved the budget from weak campaigns to strong performers.

The Results After 70 Days

In just over 2 months:

• Daily spend dropped nearly in half
• Daily sales increased from $110 to around $260
• ACOS reduced from 61% to around 22%
• The product went from a loss to a positive net profit

The seller told us:

“I was shocked. I thought my product was the problem. But it was just bad PPC. You saved my listing.”

What All These Success Stories Have in Common

Across all these case studies, we saw the same patterns:

A well-structured PPC account always performs better

When campaigns are organized correctly, Amazon knows exactly how to deliver ads.

Targeting the right keywords is everything

You don’t need hundreds of keywords. You need the right ones.

 Listing quality affects PPC more than sellers think

Good images + strong content = better conversions.

Daily monitoring leads to stable and consistent growth

Minor daily adjustments prevent significant losses.

Understanding competitors is critical

We study what competitors are doing and find openings you can win.

Why eCom Managers Deliver 2X Growth Faster Than Other Agencies

We use human-led optimization, not just automated tools

Amazon PPC needs real human decision-making.

We cover all ad types.

Sponsored Products, Brands, Video Ads, Display Ads, and even Amazon TV Ads.

We report transparently

You always know what is working, what is improving, and what our next steps are.

We focus on profit, not just traffic

Anyone can get clicks.

We get profitable conversions.

We provide a Free PPC Audit before starting

This shows you precisely what is wrong and how much you’re losing.

Want to See More Real Case Studies Like These?

If you want to see:

• full before/after screenshots
• detailed keyword analysis
• ACOS reduction strategies
• ranking improvements
• How we scaled brands step-by-step

Just say “Send more case studies” and I’ll prepare a complete pack for you.