-83.67% is the change from 447 to 73
Calculation steps:
[( 73 - 447 ) ÷ 447] x 100 = -83.67%
Formula
Percentage change = [(73 - 447) / 447] x 100
Subtract the new number by the original number
73 - 447 = -374
-374 ÷ 447 = -0.8366890380313199
-0.8366890380313199 x 100 = -83.67%