70.86% is the change from 326 to 557
Calculation steps:
[( 557 - 326 ) ÷ 326] x 100 = 70.86%
Formula
Percentage change = [(557 - 326) / 326] x 100
Subtract the new number by the original number
557 - 326 = 231
231 ÷ 326 = 0.7085889570552147
0.7085889570552147 x 100 = 70.86%