W Enterprises manufacturs plastic parts for the automotive industry. Its sales (in thousands of dollars) for 2012Q1 through 2016Q4 are as follows:

Period	Sales
Mar-12	3,816.5
Jun-12	3,916.7
Sep-12	3,978.8
Dec-12	4,046.6
Mar-13	4,119.1
Jun-13	4,169.4
Sep-13	4,193.0
Dec-13	4,216.4
Mar-14	4,238.1
Jun-14	4,270.5
Sep-14	4,321.8
Dec-14	4,349.5
Mar-15	4,406.4
Jun-15	4,394.6
Sep-15	4,422.3
Dec-15	4,430.8
Mar-16	4,463.9
Jun-16	4,517.8
Sep-16	4,563.6
Dec-16	4,633.0
Mar-17
Jun-17
Sep-17
Dec-17

Given that actual sales for the four quarters of 2017 are:

2017Q1	4667.1
2017Q2	4710.3
2017Q3	4738.7
2017Q4	4789.0

Question:

Calculate the MAPE for this forecast model in the historical period (2012Q1 - 2016Q4) as well as for the forecast horizon (2017Q1 - 2017Q4). Which of these measures accuracy and which measures fit?

Thank you