-81.37% is the change from 510 to 95
Calculation steps:
[( 95 - 510 ) ÷ 510] x 100 = -81.37%
Formula
Percentage change = [(95 - 510) / 510] x 100
Subtract the new number by the original number
95 - 510 = -415
-415 ÷ 510 = -0.8137254901960784
-0.8137254901960784 x 100 = -81.37%