-83.89% is the change from 453 to 73
Calculation steps:
[( 73 - 453 ) ÷ 453] x 100 = -83.89%
Formula
Percentage change = [(73 - 453) / 453] x 100
Subtract the new number by the original number
73 - 453 = -380
-380 ÷ 453 = -0.8388520971302428
-0.8388520971302428 x 100 = -83.89%