-0.1% is the change from 977 to 976
Calculation steps:
[( 976 - 977 ) ÷ 977] x 100 = -0.1%
Formula
Percentage change = [(976 - 977) / 977] x 100
Subtract the new number by the original number
976 - 977 = -1
-1 ÷ 977 = -0.0010235414534288639
-0.0010235414534288639 x 100 = -0.1%