I have to calculate the overall npv,Roi, and breakeven points at different discount rates in a excel sheet using the data below

What i got so far

Year	0	1	2	3	4	5		Discount Rate :	10%
Net Economic Benefit	$0	$50,000	$50,000	$50,000	$50,000	$50,000
PV of Benefits		$45,455	$41,322	$37,566	$34,151	$31,046
NPV of all Benefits
One Time Costs	-47,500	0	0	0	0	0
Recurring Costs	$0	$-32,000	$-32,000	$-32,000	$-32,000	$-32,000
PV of Recurring Costs
NPV of all costs	$-47,500
Overall NPV
Overall ROI
Break Even Analysis
Yearly Cash flow	-47500
Overall cash Flow	-47500
Breakeven between years
Actual Brakeven

EXAMPLE I AM FOLLOWING

Year 0 Year 1 Year 2 Year 3 Year 4 Year 5 Net economic $0 $50,000 $50,000 $50,000 $50,000 $50,000 benefit Onetime costs $47,500 Recurring costs $o $32,000 $32,000 $32,000 $32,000 $32,000