40% means 40/100, which equals 0.40, so...
0.40 X 90
= 36
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90 percent of 40 is 36, since 0.90 x 40 = 36.
To find 40 percent of a number, multiply the number by 0.4. In this instance, 0.4 x 225 = 90. Therefore, 40 percent of 225 is equal to 90.
90 is 225% of 40.
90%
40 cause 90-50 = 40