-64.49% is the change from 887 to 315
Calculation steps:
[( 315 - 887 ) ÷ 887] x 100 = -64.49%
Formula
Percentage change = [(315 - 887) / 887] x 100
Subtract the new number by the original number
315 - 887 = -572
-572 ÷ 887 = -0.644870349492672
-0.644870349492672 x 100 = -64.49%