Indigo Corp. enters into a contract with a customer to build an apartment building for $890,000. The customer hopes to rent apartments at the beginning of the school year and offers a performance bonus of $156,000 to be paid if the building is ready for rental beginning August 1, 2020. The bonus is reduced by $52,000 each week that completion is delayed. Indigo commonly includes these completion bonuses in its contracts and, based on prior experience, estimates the following completion outcomes:

Completed by Probability

August 1, 2020 60%

August 8, 2020 20%

August 15, 2020 15%

After August 15, 2020 5%

Determine the transaction price for this contract under IFRS.

Transaction price

$ ?