-4.71% is the change from 977 to 931
Calculation steps:
[( 931 - 977 ) ÷ 977] x 100 = -4.71%
Formula
Percentage change = [(931 - 977) / 977] x 100
Subtract the new number by the original number
931 - 977 = -46
-46 ÷ 977 = -0.04708290685772774
-0.04708290685772774 x 100 = -4.71%