-77.35% is the change from 521 to 118
Calculation steps:
[( 118 - 521 ) ÷ 521] x 100 = -77.35%
Formula
Percentage change = [(118 - 521) / 521] x 100
Subtract the new number by the original number
118 - 521 = -403
-403 ÷ 521 = -0.7735124760076776
-0.7735124760076776 x 100 = -77.35%