-72.51% is the change from 291 to 80
Calculation steps:
[( 80 - 291 ) ÷ 291] x 100 = -72.51%
Formula
Percentage change = [(80 - 291) / 291] x 100
Subtract the new number by the original number
80 - 291 = -211
-211 ÷ 291 = -0.7250859106529209
-0.7250859106529209 x 100 = -72.51%