Mr$.$ Paulson has just borrowed $$1,000$ from Mr$.$ Black. Mr$.$ Paulson has agreed to pay Mr$.$ Black $$300$ at the end of week $1,$ $$400$ at the end of week $2,$ and $$500$ at the end of week $3.$ If the interest rate is $1\%$ per week, what is the future value of this payment stream at the end of week $3?$