A Hybrid Mathematical and Decision-Making Model to Determine the Amount of Economic Order considering the Discount

Table 5

The results of calculation for small, medium, and large size test problems.

No	Epsilon constraint			NSGA-II			Error %
			Time (s)			Time (s)
1	35473.2	1260.6	2	35473.2	1260.6	2	0	0
2	35498.6	1340.7	26	35498.6	1340.7	6	0	0
3	35532.0	1489.9	52	35541.5	1484.4	7	0.02	1
4	35546.9	1553.8	93	35560.3	1549.9	9	0.03	0.5
5	35551.7	1675.5	142	35576.2	1671.4	14	0.06	1
6	56788.8	2466.0	1364	56799.9	2462.6	23	0.01	1
7	56798.4	2583.9	2897	56823.2	2579.1	26	0.04	0.07
8	56836.2	2700.7	3742	56849.5	2695.3	32	0.02	0.9
9	56864.4	2839.3	4981	56891.1	2832.0	38	0.04	0.9
10	56892.7	2898.6	6429	56938.7	2984.1	41	0.08	1
11	73963.2	6783.2	—	73967.2	6780.0	—	0.005	0.0471
12	74556.2	6932.1	—	74559.9	6928.2	—	0.004	0.056
13	75125.5	8988.0	—	75128.6	8984.4	—	0.004	0.040
14	77068.5	9538.7	—	77074.8	9532.5	—	0.008	0.064
15	79862.0	10725.0	—	79868.2	10720.0	—	0.007	0.046