-26.46% is the change from 378 to 278
Calculation steps:
[( 278 - 378 ) ÷ 378] x 100 = -26.46%
Formula
Percentage change = [(278 - 378) / 378] x 100
Subtract the new number by the original number
278 - 378 = -100
-100 ÷ 378 = -0.26455026455026454
-0.26455026455026454 x 100 = -26.46%