The following tables provide book information on the Nodhead project.

	Year
	1	2	3	4	5	6
Book income for store
1	66.10	33.90	83.90	131.90	131.90	131.90
2		73.37	37.63	93.13	146.41	146.41
3			81.44	41.77	103.37	162.51
4				90.40	46.36	114.74
5					100.34	51.46
6						111.38
Total book income	66.10	39.47	40.09	176.40	327.70	495.64
Book value for store
1	1,002.21	835.18	668.14	501.10	334.06	167.02
2		1,112.45	927.04	741.63	556.22	370.80
3			1,234.82	1,029.02	823.21	617.40
4				1,370.65	1,142.21	913.76
5					1,521.43	1,267.85
6						1,688.78
Total book value	1,002.21	1,947.63	2,830.00	3,642.40	4,377.13	5,025.61

Assume a steady-state growth rate of 11% per year. Calculate the book ROI. (Negative answers should be indicated by a minus sign. Do not round intermediate calculations. Round your answers to 3 decimal places.)

	Year
	1	2	3	4	5	6
Book ROI