-7.93% is the change from 845 to 778
Calculation steps:
[( 778 - 845 ) ÷ 845] x 100 = -7.93%
Formula
Percentage change = [(778 - 845) / 845] x 100
Subtract the new number by the original number
778 - 845 = -67
-67 ÷ 845 = -0.07928994082840236
-0.07928994082840236 x 100 = -7.93%
Example