-77.61% is the change from 393 to 88
Calculation steps:
[( 88 - 393 ) ÷ 393] x 100 = -77.61%
Formula
Percentage change = [(88 - 393) / 393] x 100
Subtract the new number by the original number
88 - 393 = -305
-305 ÷ 393 = -0.7760814249363868
-0.7760814249363868 x 100 = -77.61%