40% is the change from 160 to 224
Calculation steps:
[( 224 - 160 ) ÷ 160] x 100 = 40%
Formula
Percentage change = [(224 - 160) / 160] x 100
Subtract the new number by the original number
224 - 160 = 64
64 ÷ 160 = 0.4
0.4 x 100 = 40%
Example