Table 5. Present value of benefits and costs per acre (2010 $), return to investment, and the pay-back period.

Return on investment in ecosystem services			Baseline	Agricultural expansion
Present value of benefits per acre	High		7,720	7,930
Present value of benefits per acre	Low		954	978
Costs per acre			3,001	3,001
	High	1% discount rate	5.14	5.28
Return on investment	High	2% discount rate	2.57	2.64
	Low	2% discount rate	0.32	0.33
	Low	3% discount rate	0.21	0.22
Years to pay back investment	High		25.4	24.7
Years to pay back investment	Low		–	–