Cassandra traces your CPA down to the one number that broke, finds why, and fixes it.
Find what broke
WHAT
Your CPA went from $22 to $67.
WHY
Hook rate on your top ad fell from 30% to 10%. People had seen it 6 times.
FIXED
3 new hooks live, the tired ad paused. 03:05
Every number is made of smaller ones. Cassandra follows the red line until it hits the one that moved.
Cost per sale
= spend ÷ purchases
$22 → $67
Spend
$5,000 · same
Purchases
= clicks × conversion rate
225 → 75
Clicks
= impressions × click rate
7,500 → 2,500
Impressions
= spend ÷ CPM × 1,000
500k · same
CPM
price per 1,000 views
$10 · same
Click rate
= hook rate × clicks per hook
1.5% → 0.5%
Hook rate
people who stop on the ad ÷ impressions
30% → 10%
Clicks per hook
clicks ÷ people who stopped
5% · same
Conversion rate
= page views × add to cart × checkout
3% · same
Landing page views
80% · same
Add to cart
10% · same
Checkout
37.5% · same
Example figures, for illustration.
CHECKS
Everything that moves hook rate
Times seen, new ads from competitors, audience changes, edits to the ad.
FINDS
The same people saw it 6 times
Up from 2 last week. The hook stopped working on them.
FIXES
New hooks live, old ad paused
Within the limits you set. Bigger changes wait for your OK.
Connect your ad accounts and store. Your first check is ready in 30 minutes. Free.
Find what broke
It only acts on its own within the limits you set.