-12.14% is the change from 173 to 152
Calculation steps:
[( 152 - 173 ) ÷ 173] x 100 = -12.14%
Formula
Percentage change = [(152 - 173) / 173] x 100
Subtract the new number by the original number
152 - 173 = -21
-21 ÷ 173 = -0.12138728323699421
-0.12138728323699421 x 100 = -12.14%