original price=125
discount=x dollars or percent I will find both
sale price=81.25
so origonal-discount=sale
125-x=81.25
subtract 125 from both sides
-x=-43.75
multiply -1
x=43.75
the discount was 43.75
to convert into fraction divide 43.75 by 125 then multiply by 100
43.75/125=0.35
0.35 times 100=35%
35% discount
