-81.89% is the change from 403 to 73
Calculation steps:
[( 73 - 403 ) ÷ 403] x 100 = -81.89%
Formula
Percentage change = [(73 - 403) / 403] x 100
Subtract the new number by the original number
73 - 403 = -330
-330 ÷ 403 = -0.8188585607940446
-0.8188585607940446 x 100 = -81.89%