90% is the change from 70 to 133
Calculation steps:
[( 133 - 70 ) ÷ 70] x 100 = 90%
Formula
Percentage change = [(133 - 70) / 70] x 100
Subtract the new number by the original number
133 - 70 = 63
63 ÷ 70 = 0.9
0.9 x 100 = 90%
Example