Should i kill my ad?

Any advice is greatly appreciated.
I have been running a conversion ad for view content since June 7th for 12 Dollars per day.
The ad always lands 1 purchase per day which brings a 9 dollar profit so i lose only 3 dollars per day.
PS: Targeting country is France,the niche is jewelry.
View content per day:
June 7- 49 cost: 0.24 per result (usd)
June 8- 94 cost: 0.13
June 9- 47 cost: 0.25
June 10- 94 cost: 0.13
June 11- 125 cost: 0.10
June 12- 78 cost: 0.16
June 13- 52 cost: 0.23
June 14- 35 cost: 0.32

Optimize your ad by split testing if it still doesn't work out after a few days then kill it.

Kill it! You're only losing money.

There are 2 routes you can take, depending on how large your target audience is:

1) Duplicate the ad exactly and turn off the original. I have seen many ads get a second win using this method.
2) Lower the budget on this ad significantly and let it run for a few days, see how the results fluctuate after a few days.