An Optimization Method for the Remanufacturing Dynamic Facility Layout Problem with Uncertainties

Table 3

Comparison of the average total cost of two cases.

Arrival rate level	The average total cost		Cost difference	Cost reduction ratio
	The static layout	The dynamic layout
	100915	78084	28831	0.226239
	124947	90250	34697	0.277694
	148068	109396	38672	0.261177
	178295	135050	43245	0.242547
	196572	147063	49509	0.251862
	233200	178090	55110	0.236321
Sample mean	163666.2	122988.8	41677.33	0.249307
Sample standard deviation	48604.4	37507.91	9664.517	0.018437