-83.06% is the change from 431 to 73
Calculation steps:
[( 73 - 431 ) ÷ 431] x 100 = -83.06%
Formula
Percentage change = [(73 - 431) / 431] x 100
Subtract the new number by the original number
73 - 431 = -358
-358 ÷ 431 = -0.8306264501160093
-0.8306264501160093 x 100 = -83.06%