-7.82% is the change from 844 to 778
Calculation steps:
[( 778 - 844 ) ÷ 844] x 100 = -7.82%
Formula
Percentage change = [(778 - 844) / 844] x 100
Subtract the new number by the original number
778 - 844 = -66
-66 ÷ 844 = -0.07819905213270142
-0.07819905213270142 x 100 = -7.82%