-82.49% is the change from 988 to 173
Calculation steps:
[( 173 - 988 ) ÷ 988] x 100 = -82.49%
Formula
Percentage change = [(173 - 988) / 988] x 100
Subtract the new number by the original number
173 - 988 = -815
-815 ÷ 988 = -0.8248987854251012
-0.8248987854251012 x 100 = -82.49%