757.14% is the change from 70 to 600
Calculation steps:
[( 600 - 70 ) ÷ 70] x 100 = 757.14%
Formula
Percentage change = [(600 - 70) / 70] x 100
Subtract the new number by the original number
600 - 70 = 530
530 ÷ 70 = 7.571428571428571
7.571428571428571 x 100 = 757.14%