Let's break down the expression step by step:
Calculate \( 8 \times 24 \): \[ 8 \times 24 = 192 \]
Calculate \( 12,143 + 11,778 \): \[ 12,143 + 11,778 = 23,921 \]
Now, multiply \( 23,921 \) by \( 7 \): \[ 23,921 \times 7 = 167,447 \]
Finally, substitute these results into the complete expression: \[ 372 - 167,447 \] This yields: \[ 372 - 167,447 = -167,075 \]
So, the final result is: \[ \boxed{-167,075} \]