-6.42% is the change from 779 to 729
Calculation steps:
[( 729 - 779 ) ÷ 779] x 100 = -6.42%
Formula
Percentage change = [(729 - 779) / 779] x 100
Subtract the new number by the original number
729 - 779 = -50
-50 ÷ 779 = -0.06418485237483953
-0.06418485237483953 x 100 = -6.42%