-1.41% is the change from 991 to 977
Calculation steps:
[( 977 - 991 ) ÷ 991] x 100 = -1.41%
Formula
Percentage change = [(977 - 991) / 991] x 100
Subtract the new number by the original number
977 - 991 = -14
-14 ÷ 991 = -0.014127144298688193
-0.014127144298688193 x 100 = -1.41%