31.85% is the change from 270 to 356
Calculation steps:
[( 356 - 270 ) ÷ 270] x 100 = 31.85%
Formula
Percentage change = [(356 - 270) / 270] x 100
Subtract the new number by the original number
356 - 270 = 86
86 ÷ 270 = 0.31851851851851853
0.31851851851851853 x 100 = 31.85%