-90.55% is the change from 550 to 52
Calculation steps:
[( 52 - 550 ) ÷ 550] x 100 = -90.55%
Formula
Percentage change = [(52 - 550) / 550] x 100
Subtract the new number by the original number
52 - 550 = -498
-498 ÷ 550 = -0.9054545454545454
-0.9054545454545454 x 100 = -90.55%
Example