7.85% is the change from 331 to 357
Calculation steps:
[( 357 - 331 ) ÷ 331] x 100 = 7.85%
Formula
Percentage change = [(357 - 331) / 331] x 100
Subtract the new number by the original number
357 - 331 = 26
26 ÷ 331 = 0.07854984894259819
0.07854984894259819 x 100 = 7.85%