-82.47% is the change from 987 to 173
Calculation steps:
[( 173 - 987 ) ÷ 987] x 100 = -82.47%
Formula
Percentage change = [(173 - 987) / 987] x 100
Subtract the new number by the original number
173 - 987 = -814
-814 ÷ 987 = -0.8247213779128673
-0.8247213779128673 x 100 = -82.47%