-67.87% is the change from 249 to 80
Calculation steps:
[( 80 - 249 ) ÷ 249] x 100 = -67.87%
Formula
Percentage change = [(80 - 249) / 249] x 100
Subtract the new number by the original number
80 - 249 = -169
-169 ÷ 249 = -0.678714859437751
-0.678714859437751 x 100 = -67.87%