-6.54% is the change from 780 to 729
Calculation steps:
[( 729 - 780 ) ÷ 780] x 100 = -6.54%
Formula
Percentage change = [(729 - 780) / 780] x 100
Subtract the new number by the original number
729 - 780 = -51
-51 ÷ 780 = -0.06538461538461539
-0.06538461538461539 x 100 = -6.54%