-2.03% is the change from 787 to 771
Calculation steps:
[( 771 - 787 ) ÷ 787] x 100 = -2.03%
Formula
Percentage change = [(771 - 787) / 787] x 100
Subtract the new number by the original number
771 - 787 = -16
-16 ÷ 787 = -0.020330368487928845
-0.020330368487928845 x 100 = -2.03%