On August 1st 2020 , you expected that after 2 months , the USD / VND will be expected at 21,000 . Currently , you have the access to the account that allow you to buy or sell $ 100,000 and see the put and call on VND with the exercise at $ 0.4264 per 10,000VND and premium of 100VND per USD . The WACC is 11 $ . Calculate the break - even , net , and gross profit .