150% is the change from 70 to 175
Calculation steps:
[( 175 - 70 ) ÷ 70] x 100 = 150%
Formula
Percentage change = [(175 - 70) / 70] x 100
Subtract the new number by the original number
175 - 70 = 105
105 ÷ 70 = 1.5
1.5 x 100 = 150%
Example