75% is the change from 156 to 273
Calculation steps:
[( 273 - 156 ) ÷ 156] x 100 = 75%
Formula
Percentage change = [(273 - 156) / 156] x 100
Subtract the new number by the original number
273 - 156 = 117
117 ÷ 156 = 0.75
0.75 x 100 = 75%
Example