-16.44% is the change from 870 to 727
Calculation steps:
[( 727 - 870 ) ÷ 870] x 100 = -16.44%
Formula
Percentage change = [(727 - 870) / 870] x 100
Subtract the new number by the original number
727 - 870 = -143
-143 ÷ 870 = -0.16436781609195403
-0.16436781609195403 x 100 = -16.44%