-82.49% is the change from 457 to 80
Calculation steps:
[( 80 - 457 ) ÷ 457] x 100 = -82.49%
Formula
Percentage change = [(80 - 457) / 457] x 100
Subtract the new number by the original number
80 - 457 = -377
-377 ÷ 457 = -0.824945295404814
-0.824945295404814 x 100 = -82.49%