505.71% is the change from 70 to 424
Calculation steps:
[( 424 - 70 ) ÷ 70] x 100 = 505.71%
Formula
Percentage change = [(424 - 70) / 70] x 100
Subtract the new number by the original number
424 - 70 = 354
354 ÷ 70 = 5.057142857142857
5.057142857142857 x 100 = 505.71%