-4.09% is the change from 977 to 937
Calculation steps:
[( 937 - 977 ) ÷ 977] x 100 = -4.09%
Formula
Percentage change = [(937 - 977) / 977] x 100
Subtract the new number by the original number
937 - 977 = -40
-40 ÷ 977 = -0.04094165813715456
-0.04094165813715456 x 100 = -4.09%