-80.8% is the change from 401 to 77
Calculation steps:
[( 77 - 401 ) ÷ 401] x 100 = -80.8%
Formula
Percentage change = [(77 - 401) / 401] x 100
Subtract the new number by the original number
77 - 401 = -324
-324 ÷ 401 = -0.8079800498753117
-0.8079800498753117 x 100 = -80.8%