-32.28% is the change from 378 to 256
Calculation steps:
[( 256 - 378 ) ÷ 378] x 100 = -32.28%
Formula
Percentage change = [(256 - 378) / 378] x 100
Subtract the new number by the original number
256 - 378 = -122
-122 ÷ 378 = -0.32275132275132273
-0.32275132275132273 x 100 = -32.28%