1.

Cumulative NPV of the change $

(1,052,933)

(318,007)

1,374,355

3,880,995

7,074,633

2.

Cumulative NPV of the change $ (1,332,154) (1,090,852) (53,004) 1,682,192 4,023,366

explain the cumulative npv in 1 and 2 both are five years period

1. change in contribtion		(1,179,285)	921,890	2,377,647	3,944,247	5,628,281
Apply discount factors based on a 12% cost of capital		1.12	1.25	1.40	1.57	1.76
Net Present Value of the change in contribution $		(1,052,933)	734,925	1,692,362	2,506,640	3,193,638
Cumulative NPV of the change $		(1,052,933)	(318,007)	1,374,355	3,880,995	7,074,633

2. Change in Contribution $		(1,492,013)	302,689	1,458,102	2,730,365	4,125,949
Apply discount factors based on a 12% cost of capital		1.12	1.25	1.40	1.57	1.76
Net Present Value of the change in contribution $		(1,332,154)	241,302	1,037,848	1,735,196	2,341,174
Cumulative NPV of the change $		(1,332,154)	(1,090,852)	(53,004)	1,682,192	4,023,366