-0.64% is the change from 778 to 773
Calculation steps:
[( 773 - 778 ) ÷ 778] x 100 = -0.64%
Formula
Percentage change = [(773 - 778) / 778] x 100
Subtract the new number by the original number
773 - 778 = -5
-5 ÷ 778 = -0.006426735218508998
-0.006426735218508998 x 100 = -0.64%