-5.78% is the change from 173 to 163
Calculation steps:
[( 163 - 173 ) ÷ 173] x 100 = -5.78%
Formula
Percentage change = [(163 - 173) / 173] x 100
Subtract the new number by the original number
163 - 173 = -10
-10 ÷ 173 = -0.057803468208092484
-0.057803468208092484 x 100 = -5.78%