-30.89% is the change from 981 to 678
Calculation steps:
[( 678 - 981 ) ÷ 981] x 100 = -30.89%
Formula
Percentage change = [(678 - 981) / 981] x 100
Subtract the new number by the original number
678 - 981 = -303
-303 ÷ 981 = -0.308868501529052
-0.308868501529052 x 100 = -30.89%