-24.07% is the change from 378 to 287
Calculation steps:
[( 287 - 378 ) ÷ 378] x 100 = -24.07%
Formula
Percentage change = [(287 - 378) / 378] x 100
Subtract the new number by the original number
287 - 378 = -91
-91 ÷ 378 = -0.24074074074074073
-0.24074074074074073 x 100 = -24.07%