-86.68% is the change from 608 to 81
Calculation steps:
[( 81 - 608 ) ÷ 608] x 100 = -86.68%
Formula
Percentage change = [(81 - 608) / 608] x 100
Subtract the new number by the original number
81 - 608 = -527
-527 ÷ 608 = -0.8667763157894737
-0.8667763157894737 x 100 = -86.68%