-12.28% is the change from 977 to 857
Calculation steps:
[( 857 - 977 ) ÷ 977] x 100 = -12.28%
Formula
Percentage change = [(857 - 977) / 977] x 100
Subtract the new number by the original number
857 - 977 = -120
-120 ÷ 977 = -0.12282497441146366
-0.12282497441146366 x 100 = -12.28%