-17.22% is the change from 819 to 678
Calculation steps:
[( 678 - 819 ) ÷ 819] x 100 = -17.22%
Formula
Percentage change = [(678 - 819) / 819] x 100
Subtract the new number by the original number
678 - 819 = -141
-141 ÷ 819 = -0.17216117216117216
-0.17216117216117216 x 100 = -17.22%