-63.67% is the change from 867 to 315
Calculation steps:
[( 315 - 867 ) ÷ 867] x 100 = -63.67%
Formula
Percentage change = [(315 - 867) / 867] x 100
Subtract the new number by the original number
315 - 867 = -552
-552 ÷ 867 = -0.6366782006920415
-0.6366782006920415 x 100 = -63.67%