Selected Historical Results:

Period	Sales ($ '000's)	Labour ($ '000's)	Material ($ '000's)	Other Costs ($ '000's)
Jan 2022	250	63	104	65
Feb	252	62	102	66
Mar	262	65	103	64
April	255	64	106	66
May	263	66	103	63
June	270	69	104	65
July	265	68	102	64
Aug	262	66	108	67
Sept	254	69	107	66
Oct	259	75	109	65
Nov.	265	76	115	69
Dec	268	77	120	70
Jan 2023	255	51	156	64
Feb	265	47	150	63
Mar	275	35	149	64
April	290	31	144	65
May	284	30	146	63
June	286	31	147	65
July	295	29	148	64
Aug	292	29	148	63
Sept	301	31	150	65

Compare the 3 average productivity indices for the whole of 2022 (12 months) with the 3 average indices of July-September (only 3 months) of 2023. a) What is the percentage change for each index? (12 marks) b) Why do we use only 3 late months in 2023? (3 marks)

Did the change in manufacturing strategy deliver improvements? Comment on patterns of Total Productivity, Labour Productivity and Material productivity, before and after the change in strategy and explain the reasons for each of the 3 patterns. IE. Mention the reason(s) that a productivity index went up or down. (10 Marks)