31.43% is the change from 70 to 92
Calculation steps:
[( 92 - 70 ) ÷ 70] x 100 = 31.43%
Formula
Percentage change = [(92 - 70) / 70] x 100
Subtract the new number by the original number
92 - 70 = 22
22 ÷ 70 = 0.3142857142857143
0.3142857142857143 x 100 = 31.43%