-15.07% is the change from 219 to 186
Calculation steps:
[( 186 - 219 ) ÷ 219] x 100 = -15.07%
Formula
Percentage change = [(186 - 219) / 219] x 100
Subtract the new number by the original number
186 - 219 = -33
-33 ÷ 219 = -0.1506849315068493
-0.1506849315068493 x 100 = -15.07%