-37% is the change from 600 to 378
Calculation steps:
[( 378 - 600 ) ÷ 600] x 100 = -37%
Formula
Percentage change = [(378 - 600) / 600] x 100
Subtract the new number by the original number
378 - 600 = -222
-222 ÷ 600 = -0.37
-0.37 x 100 = -37%
Example