40
11/100
99 is 1% less than 100 .
900 as a product of its prime factors in exponents is: 22*32*52 = 900
900 = 2 x 2 x 3 x 3 x 5 x 5 OR 22 x 32 x 52
About 75%
40
25%
22% = .22 .22*900=198
25%
11/100
Multiply 900 by .22. .22 is 22% of 1.00, simple. The answer would be 198
22% of 900 = 22% * 900 = 0.22 * 900 = 198
13% of $600 is $78.00
by moving the decimal to times to the right
4/5 = 0.8 = 80%
9/10