-13.1% is the change from 977 to 849
Calculation steps:
[( 849 - 977 ) ÷ 977] x 100 = -13.1%
Formula
Percentage change = [(849 - 977) / 977] x 100
Subtract the new number by the original number
849 - 977 = -128
-128 ÷ 977 = -0.13101330603889458
-0.13101330603889458 x 100 = -13.1%