Or trying to figure out the basis for the percentage. 90% faster! And how about a percentage of percentages. The APR will go up by 10%. Condition A saved 10% but Condition B saved 50% more. (Is that 15% then?)
My pet peeve is something that used to 200 units and is now 300 units is accepted to be “150% larger!” despite that being non-sensical mathematically. (IMO, it's "50% larger" or "150% as large" but not "150% larger".)
