-45.12% is the change from 778 to 427
Calculation steps:
[( 427 - 778 ) ÷ 778] x 100 = -45.12%
Formula
Percentage change = [(427 - 778) / 778] x 100
Subtract the new number by the original number
427 - 778 = -351
-351 ÷ 778 = -0.45115681233933164
-0.45115681233933164 x 100 = -45.12%