-45.89% is the change from 778 to 421
Calculation steps:
[( 421 - 778 ) ÷ 778] x 100 = -45.89%
Formula
Percentage change = [(421 - 778) / 778] x 100
Subtract the new number by the original number
421 - 778 = -357
-357 ÷ 778 = -0.4588688946015424
-0.4588688946015424 x 100 = -45.89%