-88.67% is the change from 503 to 57
Calculation steps:
[( 57 - 503 ) ÷ 503] x 100 = -88.67%
Formula
Percentage change = [(57 - 503) / 503] x 100
Subtract the new number by the original number
57 - 503 = -446
-446 ÷ 503 = -0.8866799204771372
-0.8866799204771372 x 100 = -88.67%