-65.46% is the change from 249 to 86
Calculation steps:
[( 86 - 249 ) ÷ 249] x 100 = -65.46%
Formula
Percentage change = [(86 - 249) / 249] x 100
Subtract the new number by the original number
86 - 249 = -163
-163 ÷ 249 = -0.6546184738955824
-0.6546184738955824 x 100 = -65.46%