-11.63% is the change from 980 to 866
Calculation steps:
[( 866 - 980 ) ÷ 980] x 100 = -11.63%
Formula
Percentage change = [(866 - 980) / 980] x 100
Subtract the new number by the original number
866 - 980 = -114
-114 ÷ 980 = -0.11632653061224489
-0.11632653061224489 x 100 = -11.63%