-21.22% is the change from 278 to 219
Calculation steps:
[( 219 - 278 ) ÷ 278] x 100 = -21.22%
Formula
Percentage change = [(219 - 278) / 278] x 100
Subtract the new number by the original number
219 - 278 = -59
-59 ÷ 278 = -0.21223021582733814
-0.21223021582733814 x 100 = -21.22%