-15.4% is the change from 870 to 736
Calculation steps:
[( 736 - 870 ) ÷ 870] x 100 = -15.4%
Formula
Percentage change = [(736 - 870) / 870] x 100
Subtract the new number by the original number
736 - 870 = -134
-134 ÷ 870 = -0.15402298850574714
-0.15402298850574714 x 100 = -15.4%