the discount was 35% so the sale price was actually 65% of the original price ( 100% - 35% = 65%)
To find the original price, divide the sale price by the percent ( as a decimal) of the original price ( 65% = 0.65)
56.80 / 0.65 = 87.38
to check: multiply the calculated original price 87.38 by 35% discount and subtract:
87.38 x 0.35 = 30.58
87.38 - 30.58 = 56.80 which equals the sale price
The original price was $87.38