-13.29% is the change from 173 to 150
Calculation steps:
[( 150 - 173 ) ÷ 173] x 100 = -13.29%
Formula
Percentage change = [(150 - 173) / 173] x 100
Subtract the new number by the original number
150 - 173 = -23
-23 ÷ 173 = -0.1329479768786127
-0.1329479768786127 x 100 = -13.29%