-54.8% is the change from 177 to 80
Calculation steps:
[( 80 - 177 ) ÷ 177] x 100 = -54.8%
Formula
Percentage change = [(80 - 177) / 177] x 100
Subtract the new number by the original number
80 - 177 = -97
-97 ÷ 177 = -0.5480225988700564
-0.5480225988700564 x 100 = -54.8%