If someone tells me that the DVD player they recommend costs $297.89 at Costco but I can get a $49.95 mail-in rebate, then I need to spend some time rounding th

If someone tells me that the DVD player they recommend costs $297.89 at Costco but I can get a $49.95 mail-in rebate, then I need to spend some time rounding that to $250 before committing it to memory. Did anyone else file that as 'less than $250' in their brains?