An Optimization Model for Inventory System and the Algorithm for the Optimal Inventory Costs Based on Supply-Demand Balance

Table 1

Ordering costs of each cycle (10⁴ Yuan).

	Actual value	Simulation value
Nitrogen	957.03	1109.0625	848.44	742.8	659.9	633.28	633.28
Phosphate	783.025	783.02	114.6019	112.3126	110.5313	872.9776	872.9776
Potassium	34.829	27.8632	39.80624	43.53625	46.43737	48.7606	48.7606
Other	34.829	27.8632	39.80624	43.53625	46.43737	48.7606	48.7606
Total	1914.0625	2060.1268	1102.778	996.515	913.0875	1696.259	1696.259