-43.88% is the change from 980 to 550
Calculation steps:
[( 550 - 980 ) ÷ 980] x 100 = -43.88%
Formula
Percentage change = [(550 - 980) / 980] x 100
Subtract the new number by the original number
550 - 980 = -430
-430 ÷ 980 = -0.4387755102040816
-0.4387755102040816 x 100 = -43.88%