83.7% is the change from 270 to 496
Calculation steps:
[( 496 - 270 ) ÷ 270] x 100 = 83.7%
Formula
Percentage change = [(496 - 270) / 270] x 100
Subtract the new number by the original number
496 - 270 = 226
226 ÷ 270 = 0.837037037037037
0.837037037037037 x 100 = 83.7%