-88.44% is the change from 493 to 57
Calculation steps:
[( 57 - 493 ) ÷ 493] x 100 = -88.44%
Formula
Percentage change = [(57 - 493) / 493] x 100
Subtract the new number by the original number
57 - 493 = -436
-436 ÷ 493 = -0.8843813387423936
-0.8843813387423936 x 100 = -88.44%