-83.33% is the change from 438 to 73
Calculation steps:
[( 73 - 438 ) ÷ 438] x 100 = -83.33%
Formula
Percentage change = [(73 - 438) / 438] x 100
Subtract the new number by the original number
73 - 438 = -365
-365 ÷ 438 = -0.8333333333333334
-0.8333333333333334 x 100 = -83.33%