-81.93% is the change from 415 to 75
Calculation steps:
[( 75 - 415 ) ÷ 415] x 100 = -81.93%
Formula
Percentage change = [(75 - 415) / 415] x 100
Subtract the new number by the original number
75 - 415 = -340
-340 ÷ 415 = -0.8192771084337349
-0.8192771084337349 x 100 = -81.93%