-83.71% is the change from 976 to 159
Calculation steps:
[( 159 - 976 ) ÷ 976] x 100 = -83.71%
Formula
Percentage change = [(159 - 976) / 976] x 100
Subtract the new number by the original number
159 - 976 = -817
-817 ÷ 976 = -0.8370901639344263
-0.8370901639344263 x 100 = -83.71%