-2.31% is the change from 173 to 169
Calculation steps:
[( 169 - 173 ) ÷ 173] x 100 = -2.31%
Formula
Percentage change = [(169 - 173) / 173] x 100
Subtract the new number by the original number
169 - 173 = -4
-4 ÷ 173 = -0.023121387283236993
-0.023121387283236993 x 100 = -2.31%