-1.78% is the change from 787 to 773
Calculation steps:
[( 773 - 787 ) ÷ 787] x 100 = -1.78%
Formula
Percentage change = [(773 - 787) / 787] x 100
Subtract the new number by the original number
773 - 787 = -14
-14 ÷ 787 = -0.017789072426937738
-0.017789072426937738 x 100 = -1.78%