-7.98% is the change from 188 to 173
Calculation steps:
[( 173 - 188 ) ÷ 188] x 100 = -7.98%
Formula
Percentage change = [(173 - 188) / 188] x 100
Subtract the new number by the original number
173 - 188 = -15
-15 ÷ 188 = -0.0797872340425532
-0.0797872340425532 x 100 = -7.98%