Can someone help with this question? [ Actual contribution]

A company uses standard marginal costing to monitor its performance in a period actual profit
was $142,000. Budgeted fixed overheads were $50,000 and the fixed overhead expenditure
variance was $3,000 adverse. What was the actual contribution in the period

i got 195000 by doing using this

actual contribution – X
less budgeted fixed overhead – (50000)
fixed overhead expenditure – (3000)
actual profit- 142000

but the textbook got 145000 as an answer, i dont know what i am doing wrong, can someone plz help