-49.87% is the change from 778 to 390
Calculation steps:
[( 390 - 778 ) ÷ 778] x 100 = -49.87%
Formula
Percentage change = [(390 - 778) / 778] x 100
Subtract the new number by the original number
390 - 778 = -388
-388 ÷ 778 = -0.4987146529562982
-0.4987146529562982 x 100 = -49.87%