-28.57% is the change from 378 to 270
Calculation steps:
[( 270 - 378 ) ÷ 378] x 100 = -28.57%
Formula
Percentage change = [(270 - 378) / 378] x 100
Subtract the new number by the original number
270 - 378 = -108
-108 ÷ 378 = -0.2857142857142857
-0.2857142857142857 x 100 = -28.57%