7157.14% is the change from 7 to 508
Calculation steps:
[( 508 - 7 ) ÷ 7] x 100 = 7157.14%
Formula
Percentage change = [(508 - 7) / 7] x 100
Subtract the new number by the original number
508 - 7 = 501
501 ÷ 7 = 71.57142857142857
71.57142857142857 x 100 = 7157.14%