Because 2.5 times 40 = 100
40
25
40
10 divided by 25= 0.4 0.4 multiplied by 100=40 your answer is 40 percent
25
40 = 2.5
2.5
-65
25
1.6
Put the number of percent divided by 100. Example: 38.7% = 38.7/100 = 387/1000; 40% = 40/100 = 4/100 = 2/50 = 1/25
40/100 x 100 = 40%