IFRS 15 REVENUE

PLEASE HELP!!HOW MUCH WILL BE RECOGNISED AS REVENUE FOR THE YEAR 31 MARCH 2011??

Included in the sales revenue is an amount of $3 million relating to the sales made under a special promotion in march 2011.these goods were sold with an accompanying voucher equal to the selling price.five years after the sale, these vouhers will be exchanged for goods of the customer’s choosing. The profit margin on these goods is expected to be 30% of selling price,and market research estimates that 50% of the vouchers will be redeemed.the present value at 31 march 2011(year end) of $1 at the time the vouchers will be exchanged can be taken as 60c.

NOTE:revenue in summarised list of accoubt balances is $26,750.