Всё надо в дробях, 45%,65%,75%,80%,47%,2%
1% = 0,01 45% = 0,45 = 9/20 65% = 0,65 = 13/20 75% = 0,75 = 3/4 80% = 0,80 = 4/5 47% = 0,47 = 47/100 2% = 0,02 = 1/50