-83.81% is the change from 451 to 73
Calculation steps:
[( 73 - 451 ) ÷ 451] x 100 = -83.81%
Formula
Percentage change = [(73 - 451) / 451] x 100
Subtract the new number by the original number
73 - 451 = -378
-378 ÷ 451 = -0.8381374722838137
-0.8381374722838137 x 100 = -83.81%