-89.63% is the change from 511 to 53
Calculation steps:
[( 53 - 511 ) ÷ 511] x 100 = -89.63%
Formula
Percentage change = [(53 - 511) / 511] x 100
Subtract the new number by the original number
53 - 511 = -458
-458 ÷ 511 = -0.8962818003913894
-0.8962818003913894 x 100 = -89.63%