-81.57% is the change from 396 to 73
Calculation steps:
[( 73 - 396 ) ÷ 396] x 100 = -81.57%
Formula
Percentage change = [(73 - 396) / 396] x 100
Subtract the new number by the original number
73 - 396 = -323
-323 ÷ 396 = -0.8156565656565656
-0.8156565656565656 x 100 = -81.57%