-83.92% is the change from 454 to 73
Calculation steps:
[( 73 - 454 ) ÷ 454] x 100 = -83.92%
Formula
Percentage change = [(73 - 454) / 454] x 100
Subtract the new number by the original number
73 - 454 = -381
-381 ÷ 454 = -0.8392070484581498
-0.8392070484581498 x 100 = -83.92%