-6.55% is the change from 779 to 728
Calculation steps:
[( 728 - 779 ) ÷ 779] x 100 = -6.55%
Formula
Percentage change = [(728 - 779) / 779] x 100
Subtract the new number by the original number
728 - 779 = -51
-51 ÷ 779 = -0.06546854942233633
-0.06546854942233633 x 100 = -6.55%