-82.41% is the change from 415 to 73
Calculation steps:
[( 73 - 415 ) ÷ 415] x 100 = -82.41%
Formula
Percentage change = [(73 - 415) / 415] x 100
Subtract the new number by the original number
73 - 415 = -342
-342 ÷ 415 = -0.8240963855421687
-0.8240963855421687 x 100 = -82.41%