571.43% is the change from 70 to 470
Calculation steps:
[( 470 - 70 ) ÷ 70] x 100 = 571.43%
Formula
Percentage change = [(470 - 70) / 70] x 100
Subtract the new number by the original number
470 - 70 = 400
400 ÷ 70 = 5.714285714285714
5.714285714285714 x 100 = 571.43%