Rates can be changed at the campaign level (affecting only calculations in that campaign) and at the product level (affecting calculations wherever the product is used).
Changing Rates in Campaign
1. Navigate to the 'Campaigns' page.
2. Select the campaign containing the APR rate you want to amend.
3. Find the term(s) that contain the APR and edit the value.
4. Click 'Save'.
Changing Product rates
1. Navigate to the 'Products' page.
2. Locate the product containing the APR you want to amend.
3. Click on the 'Rules' header.
4. Amend the APR value.
5. Click 'Save'.