-63.37% is the change from 860 to 315
Calculation steps:
[( 315 - 860 ) ÷ 860] x 100 = -63.37%
Formula
Percentage change = [(315 - 860) / 860] x 100
Subtract the new number by the original number
315 - 860 = -545
-545 ÷ 860 = -0.6337209302325582
-0.6337209302325582 x 100 = -63.37%