-93.57% is the change from 513 to 33
Calculation steps:
[( 33 - 513 ) ÷ 513] x 100 = -93.57%
Formula
Percentage change = [(33 - 513) / 513] x 100
Subtract the new number by the original number
33 - 513 = -480
-480 ÷ 513 = -0.935672514619883
-0.935672514619883 x 100 = -93.57%