The increase from 40 to 64 is: 60%
40 is 62.5% of 64
40% off 64 = 64 - (0.40 x 64) = 38.4
40% of 60% = 0.24 or 24%
64 x 40/100=25.6
160(.4)=64 40% of 160 is 64
166.6667% increase.
If 40% of a number = 140 Then 64% of that same number = 140 x 64/40 = 224
Multiply 64 by 1.25 and get 80.
40 out of 64 in simplest form = 5/8
62.5%
25.6