-36.32% is the change from 391 to 249
Calculation steps:
[( 249 - 391 ) ÷ 391] x 100 = -36.32%
Formula
Percentage change = [(249 - 391) / 391] x 100
Subtract the new number by the original number
249 - 391 = -142
-142 ÷ 391 = -0.3631713554987212
-0.3631713554987212 x 100 = -36.32%