-30.75% is the change from 979 to 678
Calculation steps:
[( 678 - 979 ) ÷ 979] x 100 = -30.75%
Formula
Percentage change = [(678 - 979) / 979] x 100
Subtract the new number by the original number
678 - 979 = -301
-301 ÷ 979 = -0.30745658835546474
-0.30745658835546474 x 100 = -30.75%