-80.96% is the change from 415 to 79
Calculation steps:
[( 79 - 415 ) ÷ 415] x 100 = -80.96%
Formula
Percentage change = [(79 - 415) / 415] x 100
Subtract the new number by the original number
79 - 415 = -336
-336 ÷ 415 = -0.8096385542168675
-0.8096385542168675 x 100 = -80.96%