-10.05% is the change from 378 to 340
Calculation steps:
[( 340 - 378 ) ÷ 378] x 100 = -10.05%
Formula
Percentage change = [(340 - 378) / 378] x 100
Subtract the new number by the original number
340 - 378 = -38
-38 ÷ 378 = -0.10052910052910052
-0.10052910052910052 x 100 = -10.05%