Recently upgraded from 1.7 to the latest version (1.9) of CE.
Having a problem with a catalog price rule - and it's the first rule I've set up since the upgrade.
The rule is set up to be 10% off all products from a particular brand. Very simple. Priority is zero and have it set to stop processing after this rule. There are other rules set as 'active' but they're all expired.
When I make this rule active and apply it, the discount shown on the front end is much larger than 10%, it's more like 30%.
And if I apply a discount of 0%, the items all show a discount of around 10%.
I'm not sure if the rule is getting applied multiple times, or there are deleted rules that are being applied in correctly.