-13.3% is the change from 188 to 163
Calculation steps:
[( 163 - 188 ) ÷ 188] x 100 = -13.3%
Formula
Percentage change = [(163 - 188) / 188] x 100
Subtract the new number by the original number
163 - 188 = -25
-25 ÷ 188 = -0.13297872340425532
-0.13297872340425532 x 100 = -13.3%