# Blog

#### Why Return on Ad Spend (ROAS) Bidding Kills Ecommerce Profit

29, Jan David Deppner

"Here's the math: $5 in sales ÷$1 in ad spend x 100% = 500% target ROAS" (Source: https://support.google.com/adwords/answer/6268637)

Before I explain why ROAS kills profit, you need to understand exactly what ROAS means in Google Ads. I have a complaint about...

#### PPC Strategies to Boost Your Bottom Line

21, Apr David Deppner

Presented by David Deppner
Meet Magento New York, October 17, 2017

Competition for online advertising is driving up your costs, and it’s not going to get any easier. What can you do to improve your PPC advertising and get even more profitable? This presentation covers some common misconceptions th...

#### ROI is NOT Profit

02, Oct David Deppner

Would you rather have a 10% return on $100 or a 5% return on$1000?

\begin{align} 100 \times 10\%_{ROI} &= 10 \\ 1000 \times 5\%_{ROI} &= 50 \end{align}

If you have to pick one or the other, you’d pick the \$1000 investment at the lower ROI. In the real world, though, we can usua...