-12.05% is the change from 249 to 219
Calculation steps:
[( 219 - 249 ) ÷ 249] x 100 = -12.05%
Formula
Percentage change = [(219 - 249) / 249] x 100
Subtract the new number by the original number
219 - 249 = -30
-30 ÷ 249 = -0.12048192771084337
-0.12048192771084337 x 100 = -12.05%