Year 2 Forecast MAPE

New Star Grocery Company
Sales
b1 Year 2 Customers (x) Actual Y(t) Forecast F(t) Y(t) - F(t) PE APE
b0 January 215 230
February 259 260
Y= b0+ b1x March 325 331
April 354 384
May 258 278
June 199 210
July 254 265
August 299 299
September 264 293
October 198 215
November 223 257
December 261 250 ME = Mean error
MPE = Mean percentage error
ME MPE MAPE MAPE = Mean absolute percentage error

SES - MAPE

New Star Grocery Company
Alpha Alpha
0.15 0.9
Year 2 Sales, Y(t) F(t) Y(t) - F(t) PE APE F(t) Y(t) - F(t) PE APE
January
February
March
April
May
June
July
August ME = Mean error
September MPE = Mean percentage error
October MAPE = Mean absolute percentage error
November
December
ERROR:#DIV/0! ERROR:#DIV/0! ERROR:#DIV/0! ERROR:#DIV/0! ERROR:#DIV/0! ERROR:#DIV/0!
ME MPE MAPE ME MPE MAPE
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