emcee

Emcee needs a new stadium to host sporting events which will be included as part of Emcee’s
property, plant and equipment. Emcee commenced construction of a new stadium on
1 February 20X6, and this continued until its completion which was after the year end of
31 May 20X6. The direct costs were $20 million in February 20X6 and then $50 million in
each month until the year end. Emcee has not taken out any specific borrowings to finance the
construction of the stadium, but it has incurred finance costs on its general borrowings during
the period, which could have been avoided if the stadium had not been constructed. Emcee
has calculated that the weighted average cost of borrowings for the period 1 February to
31 May 20X6 on an annualised basis amounted to 9% per annum. Emcee needs advice on
how to treat the borrowing costs in its financial statements for the year ended 31 May 20X6.

could you please explain why the weighted-average carrying amount of the stadium during the period is calculated as:
$(20 + 70 + 120 + 170)m/4, that is $95m.

because the question says 50m is cost of each month… so shouldnt it be 20+50+50+50 = 170m