(21/04/2010 06:27 AM)Mickey Wrote:  The $20 the clerk took are already in the paid amount, he got his twenty out of the $270, to make it add up you add the $30 refunded not the $20 because that's already in the paid for amount.

$300 - initial cost
$250 - real cost
$50 - difference
$30 - amount refunded
$20 - amount pocketed
$90*3=270 - actual amount paid (includes the $20 pocketed)

This. The numbers appear ringht in writing, but really its 250+20=270, not 270+20 = 290


I think??