160% is the change from 120 to 312
Calculation steps:
[( 312 - 120 ) ÷ 120] x 100 = 160%
Formula
Percentage change = [(312 - 120) / 120] x 100
Subtract the new number by the original number
312 - 120 = 192
192 ÷ 120 = 1.6
1.6 x 100 = 160%
Example