-98.8% is the change from 249 to 3
Calculation steps:
[( 3 - 249 ) ÷ 249] x 100 = -98.8%
Formula
Percentage change = [(3 - 249) / 249] x 100
Subtract the new number by the original number
3 - 249 = -246
-246 ÷ 249 = -0.9879518072289156
-0.9879518072289156 x 100 = -98.8%