-11.5% is the change from 983 to 870
Calculation steps:
[( 870 - 983 ) ÷ 983] x 100 = -11.5%
Formula
Percentage change = [(870 - 983) / 983] x 100
Subtract the new number by the original number
870 - 983 = -113
-113 ÷ 983 = -0.11495422177009156
-0.11495422177009156 x 100 = -11.5%