-39.74% is the change from 780 to 470
Calculation steps:
[( 470 - 780 ) ÷ 780] x 100 = -39.74%
Formula
Percentage change = [(470 - 780) / 780] x 100
Subtract the new number by the original number
470 - 780 = -310
-310 ÷ 780 = -0.3974358974358974
-0.3974358974358974 x 100 = -39.74%