-1.64% is the change from 791 to 778
Calculation steps:
[( 778 - 791 ) ÷ 791] x 100 = -1.64%
Formula
Percentage change = [(778 - 791) / 791] x 100
Subtract the new number by the original number
778 - 791 = -13
-13 ÷ 791 = -0.01643489254108723
-0.01643489254108723 x 100 = -1.64%