-91.55% is the change from 521 to 44
Calculation steps:
[( 44 - 521 ) ÷ 521] x 100 = -91.55%
Formula
Percentage change = [(44 - 521) / 521] x 100
Subtract the new number by the original number
44 - 521 = -477
-477 ÷ 521 = -0.9155470249520153
-0.9155470249520153 x 100 = -91.55%