-82.68% is the change from 456 to 79
Calculation steps:
[( 79 - 456 ) ÷ 456] x 100 = -82.68%
Formula
Percentage change = [(79 - 456) / 456] x 100
Subtract the new number by the original number
79 - 456 = -377
-377 ÷ 456 = -0.8267543859649122
-0.8267543859649122 x 100 = -82.68%