Omni-Channel Product Distribution Network Design by Using the Improved Particle Swarm Optimization Algorithm

Table 5

Comparison of costs and product volume when demand changes.

	Scale of the study
	1-1-2-4-10	2-2-4-10-35	2-2-6-14-55	2-4-12-22-85	3-5-18-70-205
	(2+8)	(4+31)	(5+50)	(7+78)	(10+195)
	155118311.9	4861980932	5213955899	5363403216	5672995297
	155478693.3	4913027119	5224634879	5350314683	5666793047
	155446843.3	4913110137	5231902083	5392591433	5685517791
	155867650.3	4941648089	5233955899	5389350467	5691250911
Mean	155477874.7	4907441569	5226112190	5373914950	5679139262
max-min	749338.4	79667157	20000000	42276750	24457864
(max-min)/mean	0.48%	1.62%	0.38%	0.79%	0.43%
Average value					0.74%