-56.28% is the change from 979 to 428
Calculation steps:
[( 428 - 979 ) ÷ 979] x 100 = -56.28%
Formula
Percentage change = [(428 - 979) / 979] x 100
Subtract the new number by the original number
428 - 979 = -551
-551 ÷ 979 = -0.5628192032686414
-0.5628192032686414 x 100 = -56.28%