-11% is the change from 209 to 186
Calculation steps:
[( 186 - 209 ) ÷ 209] x 100 = -11%
Formula
Percentage change = [(186 - 209) / 209] x 100
Subtract the new number by the original number
186 - 209 = -23
-23 ÷ 209 = -0.11004784688995216
-0.11004784688995216 x 100 = -11%