-99.22% is the change from 515 to 4
Calculation steps:
[( 4 - 515 ) ÷ 515] x 100 = -99.22%
Formula
Percentage change = [(4 - 515) / 515] x 100
Subtract the new number by the original number
4 - 515 = -511
-511 ÷ 515 = -0.9922330097087378
-0.9922330097087378 x 100 = -99.22%