not putting the cost figures in brackets.

Dear tutor,
In the lease vs buy question I inadvertently didn’t put the cost figures in brackets but instead put the scrap value figure in brackets indicating that it’ll reduce the overall cost of buying though in the end I did write the decision rule that the buy option should be chosen as it had lower overall cost than leasing. I want to ask that whether I’ll be penalised for this thing or not?

Than you.