unit 7 - help request
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please can someone offer advice on how to remember the calculations involved with index numbers and also the retail price index thank you
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Re:unit 7 - help request
Hope this helps
Multiply the figure in question by (relevant index number / older index number)
e.g 1
Inflation - Question Inflate months 1-2 to month 3
Month RPI Sales
1 182 200
2 194 230
3 199 260
Answer - Month 1 = 200 x (199/182) = 218.61
Month 2 = 230 x (222/194) = 263.20
e.g 2
Deflate - Question Deflate months 2-3 to month 1
Month RPI Sales
1 82 421
2 96 480
3 99 490
Answer - Month 2 = 480 x (82/96) = 410.00
Month 3 = 490 x (82/99) = 405.860