-12.55% is the change from 980 to 857
Calculation steps:
[( 857 - 980 ) ÷ 980] x 100 = -12.55%
Formula
Percentage change = [(857 - 980) / 980] x 100
Subtract the new number by the original number
857 - 980 = -123
-123 ÷ 980 = -0.12551020408163266
-0.12551020408163266 x 100 = -12.55%