Remix Ltd has made an initial investment of R$1000000$ in a new project. The firm$$s cost of capital is $13\%.$ The investment is expected to generate the following cash inflows over the next five years:

Year $1$: R $50000$

Year $2$: R $60000$

Year $3$: R $70000$

Year $4$: R$400000$

Year $5$: R$500000$

The Net present value $($NPV$)$ is $...$