-51.54% is the change from 780 to 378
Calculation steps:
[( 378 - 780 ) ÷ 780] x 100 = -51.54%
Formula
Percentage change = [(378 - 780) / 780] x 100
Subtract the new number by the original number
378 - 780 = -402
-402 ÷ 780 = -0.5153846153846153
-0.5153846153846153 x 100 = -51.54%