You can put this solution on YOUR website! OK
Percent increase=(New amount-Original amount) divided by the original amount times 100%, sooo
Percent Increase=(($90-$75)/$75)*100%=($15/$75)*100%=0.2*100%=20%
Ck
$75+$75*0.2=$90
$75+$15=$90
$90=$90
Hope this helps-----ptaylor