-13.4% is the change from 209 to 181
Calculation steps:
[( 181 - 209 ) ÷ 209] x 100 = -13.4%
Formula
Percentage change = [(181 - 209) / 209] x 100
Subtract the new number by the original number
181 - 209 = -28
-28 ÷ 209 = -0.1339712918660287
-0.1339712918660287 x 100 = -13.4%