Why am I getting high metrics but no sales on Facebook ads?

[Brayd]

Hello everyone, i am promoting a product on facebook, on the ad that im running i have an 8c cost per click 5e cpm and a  6% ctr. After 167 link clicks i have no sales... Does anyone know why this is happening please 

[LeoEcom]

When creating an advertising campaign, you need to select the goal "conversion ". Then your CPC will increase. but there will also be sales if you have set everything up correctly)) 

[Brayd]

Thank you, 

but the ad is set to website purchases already