Calculate NCI when there is intragroup interest

Hi Sir,
When there is intra group loan interest, the adjustment entries are:
Dr Interest income (RE of P)
Cr Interest expense (RE of S)
Is this correct?
In BPP, it is said that the entries are:
Dr Interest income (Group)
Cr Interest expense (Group)

The question from BPP is like this:
Brigham Co has owned 70% of Dorset Co for many years. It also holds a $5 million 8% loan
note from Dorset Co. The financial statements of Dorset Co show a profit for the year ended 31
December 20X6 of $1.3 million. Calculate Profit attributable to NCI
Here is my answer:
Profit of S = 1,300,000
Intra finance expense = 400,000
Profit attributable to NCI = (1,300,000+400,000)*30% = 510,000
Is my answer correct?