70% is the change from 160 to 272
Calculation steps:
[( 272 - 160 ) ÷ 160] x 100 = 70%
Formula
Percentage change = [(272 - 160) / 160] x 100
Subtract the new number by the original number
272 - 160 = 112
112 ÷ 160 = 0.7
0.7 x 100 = 70%
Example