-32.28% is the change from 979 to 663
Calculation steps:
[( 663 - 979 ) ÷ 979] x 100 = -32.28%
Formula
Percentage change = [(663 - 979) / 979] x 100
Subtract the new number by the original number
663 - 979 = -316
-316 ÷ 979 = -0.32277834525025534
-0.32277834525025534 x 100 = -32.28%