514.29% is the change from 70 to 430
Calculation steps:
[( 430 - 70 ) ÷ 70] x 100 = 514.29%
Formula
Percentage change = [(430 - 70) / 70] x 100
Subtract the new number by the original number
430 - 70 = 360
360 ÷ 70 = 5.142857142857143
5.142857142857143 x 100 = 514.29%