-10.34% is the change from 319 to 286
Calculation steps:
[( 286 - 319 ) ÷ 319] x 100 = -10.34%
Formula
Percentage change = [(286 - 319) / 319] x 100
Subtract the new number by the original number
286 - 319 = -33
-33 ÷ 319 = -0.10344827586206896
-0.10344827586206896 x 100 = -10.34%