-79.27% is the change from 521 to 108
Calculation steps:
[( 108 - 521 ) ÷ 521] x 100 = -79.27%
Formula
Percentage change = [(108 - 521) / 521] x 100
Subtract the new number by the original number
108 - 521 = -413
-413 ÷ 521 = -0.7927063339731286
-0.7927063339731286 x 100 = -79.27%