-81.24% is the change from 501 to 94
Calculation steps:
[( 94 - 501 ) ÷ 501] x 100 = -81.24%
Formula
Percentage change = [(94 - 501) / 501] x 100
Subtract the new number by the original number
94 - 501 = -407
-407 ÷ 501 = -0.812375249500998
-0.812375249500998 x 100 = -81.24%