-20.39% is the change from 515 to 410
Calculation steps:
[( 410 - 515 ) ÷ 515] x 100 = -20.39%
Formula
Percentage change = [(410 - 515) / 515] x 100
Subtract the new number by the original number
410 - 515 = -105
-105 ÷ 515 = -0.20388349514563106
-0.20388349514563106 x 100 = -20.39%