-36.15% is the change from 390 to 249
Calculation steps:
[( 249 - 390 ) ÷ 390] x 100 = -36.15%
Formula
Percentage change = [(249 - 390) / 390] x 100
Subtract the new number by the original number
249 - 390 = -141
-141 ÷ 390 = -0.36153846153846153
-0.36153846153846153 x 100 = -36.15%