-67.7% is the change from 678 to 219
Calculation steps:
[( 219 - 678 ) ÷ 678] x 100 = -67.7%
Formula
Percentage change = [(219 - 678) / 678] x 100
Subtract the new number by the original number
219 - 678 = -459
-459 ÷ 678 = -0.6769911504424779
-0.6769911504424779 x 100 = -67.7%