-78.92% is the change from 408 to 86
Calculation steps:
[( 86 - 408 ) ÷ 408] x 100 = -78.92%
Formula
Percentage change = [(86 - 408) / 408] x 100
Subtract the new number by the original number
86 - 408 = -322
-322 ÷ 408 = -0.7892156862745098
-0.7892156862745098 x 100 = -78.92%