11 sales in 30 days, should I cut my losses and close my account?

I’m running PPC ads daily, and despite this have only received 11 sales. And this is when I lowered the price of my item to the point where I’m not even making profit. Should I just close my account? I’ve spent $180 on PPC and that’s no where near how much I’ve made in revenue. If I quit now I won’t have to spend anymore money.

What’s the best thing to do in this situation?