So lets say my main ad was doing well and slowly going out of KPI's. do i judge it on the metrics of the entire duration it was running (1 month for example) or 1 week or 3 days?
for context my ad had around 15% conversions and 0.8 ctr link and 3% CTR all over it's lifetime. but when i check the performance of ot in the last few days, it's like %4 conversion, triple the lead price etc.
so do i judge its performance from the overall or the last week? and should i try making a new copy etc?