-31.1% is the change from 984 to 678
Calculation steps:
[( 678 - 984 ) ÷ 984] x 100 = -31.1%
Formula
Percentage change = [(678 - 984) / 984] x 100
Subtract the new number by the original number
678 - 984 = -306
-306 ÷ 984 = -0.31097560975609756
-0.31097560975609756 x 100 = -31.1%