-78.3% is the change from 401 to 87
Calculation steps:
[( 87 - 401 ) ÷ 401] x 100 = -78.3%
Formula
Percentage change = [(87 - 401) / 401] x 100
Subtract the new number by the original number
87 - 401 = -314
-314 ÷ 401 = -0.7830423940149626
-0.7830423940149626 x 100 = -78.3%