-89.41% is the change from 491 to 52
Calculation steps:
[( 52 - 491 ) ÷ 491] x 100 = -89.41%
Formula
Percentage change = [(52 - 491) / 491] x 100
Subtract the new number by the original number
52 - 491 = -439
-439 ÷ 491 = -0.8940936863543788
-0.8940936863543788 x 100 = -89.41%