For Apple$$s current annual report, assume it reports the following for raw materials.

$ millions Current Year $1$ Year Ago $2$ Years Ago

Raw materials inventory, ending $ $2,100$ $ $1,900$ $ $2,500$

Raw materials used $72,00074,80079,200$

Required:

Compute Apple$$s raw materials inventory turnover ratio for the most recent two years.

Is the current year change in Apple's raw materials inventory turnover ratio favorable or unfavorable?