-12.79% is the change from 219 to 191
Calculation steps:
[( 191 - 219 ) ÷ 219] x 100 = -12.79%
Formula
Percentage change = [(191 - 219) / 219] x 100
Subtract the new number by the original number
191 - 219 = -28
-28 ÷ 219 = -0.1278538812785388
-0.1278538812785388 x 100 = -12.79%