Use the data given in the table to calculate the MAPE for a three$-$month moving forecast. Use MAPE for analysis.

Monthly Demand at ZYW Corporations

Sales Year $1$ Year $2$ Year $3$ Year $4$ Year $5$

January $2,0003,0002,0005,0005,000$

February $3,0004,0005,0004,0002,000$

March $3,0003,0005,0004,0003,000$

April $3,0005,0003,0002,0002,000$

May $4,0005,0004,0005,0007,000$

June $6,0008,0006,0007,0006,000$

July $7,0003,0007,00010,0008,000$

August $6,0008,00010,00014,00010,000$

September $10,00012,00015,00016,00020,000$

October $12,00012,00015,00016,00020,000$

November $14,00016,00018,00020,00022,000$

December $8,00010,0008,00012,0008,000$

Total $78,00089,00098,0001,15,0001,13,000$