-86.51% is the change from 393 to 53
Calculation steps:
[( 53 - 393 ) ÷ 393] x 100 = -86.51%
Formula
Percentage change = [(53 - 393) / 393] x 100
Subtract the new number by the original number
53 - 393 = -340
-340 ÷ 393 = -0.8651399491094147
-0.8651399491094147 x 100 = -86.51%