$1$a$)$ Calculate the NPV of a project with a discount rate of $8\%$ and these cash flows:

Period $0$: $-1000$

Period $1$: $790$

Period $2$: $354$

Period $3$: $241$

Round to the nearest cent.

$1$b$)$ Compute the internal rate of return for the following cash flows:

Period $0$: $-1750$

Period $1$: $1200$

Period $2$: $600$

Period $3$: $350$

Enter your answer in percent and round to the nearest one$-$hundredth of a percent. Do not include the percent sign $(\%).$

$1$c$)$ Find the crossover rate of projects A and B

Year Project A Project B

$0-1000-500$

$1950550$

$2500350$

Enter your answer in percent and round to the nearest one$-$hundredth of a percent. Do not include the percent sign $(\%).$