-81.8% is the change from 401 to 73
Calculation steps:
[( 73 - 401 ) ÷ 401] x 100 = -81.8%
Formula
Percentage change = [(73 - 401) / 401] x 100
Subtract the new number by the original number
73 - 401 = -328
-328 ÷ 401 = -0.8179551122194514
-0.8179551122194514 x 100 = -81.8%