7128.57% is the change from 7 to 506
Calculation steps:
[( 506 - 7 ) ÷ 7] x 100 = 7128.57%
Formula
Percentage change = [(506 - 7) / 7] x 100
Subtract the new number by the original number
506 - 7 = 499
499 ÷ 7 = 71.28571428571429
71.28571428571429 x 100 = 7128.57%