Optimal Guaranteed Service Time and Service Level Decision with Time and Service Level Sensitive Demand

Table 2

Comparison of the profits.

Proposed model
𝑙^∗	𝑠^∗		𝑝^∗		Total profit
2.931	0.986		55.693		292.28
Ray and Jewkes’ [10] model
𝑠	𝑙^∗	𝑝^∗	Total profit	Profit gap	Δ𝑝%
0.50	1.177	44.411	188.2259	104.0563	55.3%
0.55	1.264	45.618	199.8627	92.41946	46.2%
0.60	1.354	46.823	211.4627	80.81944	38.2%
0.65	1.449	48.025	223.0099	69.27231	31.1%
0.70	1.552	49.224	234.4824	57.79971	24.6%
0.75	1.665	50.417	245.8489	46.43325	18.9%
0.80	1.794	51.603	257.0588	35.22338	13.7%
0.85	1.948	52.776	268.0212	24.26097	9.1%
0.90	2.146	53.927	278.5403	13.74182	4.9%
0.95	2.448	55.026	288.0225	4.259625	1.5%
		Average Δ𝑝%			24.4%