-10.64% is the change from 423 to 378
Calculation steps:
[( 378 - 423 ) ÷ 423] x 100 = -10.64%
Formula
Percentage change = [(378 - 423) / 423] x 100
Subtract the new number by the original number
378 - 423 = -45
-45 ÷ 423 = -0.10638297872340426
-0.10638297872340426 x 100 = -10.64%