okay let's look into last various method so using quantities consumed during the base period to compare each index number okay so let us do it one by one okay so PT this one I think I will not go further on the last the formula okay because this is price or set so you will have the price and don't forget last press is based on the base here so since this is on price so you will have you will have okay on quantity base year okay as the weight okay so what will be the advantage so it's safe cost in getting information because it's your quantity from the base here so you can use to compare with any given year disadvantage is what does not take into consideration changes in the consumption patterns okay so let us look into one of the example so let's trick into 5.6 okay so this question asks you to calculate the last payer's price index for the following type of stationery so four factors so first how many elements here items so you have four right okay so what's the base year 2000 so means that 2000 is the base year okay so again what will be the um this is about price or quantity it's about price so do remember it's on price so you only highlight the first one okay so means that you only use this this part okay this part okay after that don't forget question asks you to give a comment okay so let us continue okay so get the formula first okay so substitute in because you already know that current year is 2001 okay okay so write down the formula already okay and do remember in your what's your base year yes your base year is 2000 so highlight 2000 already okay so we do it one by one okay now how many items here just now okay Alright. if four so you have four brackets okay you get four brackets okay again already okay so after that we substitute one by one okay now we substitute for price 2001 verse so part price for 2001 is this am i right okay so let's do it one by one so 1.15 0.45, 0.25, 0.25. Ready? Okay.
So, it means that we have done for the first part. Okay. Now, we go for price for 2,000. Okay. So, I have 1.00, 0.30, 0.2.
0.15 okay so you can actually check your answer you see check answer this is one okay check answer 1 0.30 0.20 0.15 so okay correct 1.50.45 0.25 0.25 so it's check okay if let's say if you have one thing missing or what you will realize it so just get into the the position Okay, are you ready? Okay, so after that, what will you do? Yes, the quantity of the base here. So quantity of the base here is this one, okay? So 205, so 205, just write down 205. So now, you do it lastly, okay?
After that, 1000, 1000, 100, 100, 300. 300 okay so 250 correct 1000 correct 100 correct 300 correct so you just check one by one it's okay just substitute only accordingly okay you don't jump it okay you don't jump it easy okay and do remember another careless mistake is what students forget to put multiply 100 at the back okay be Be careful. So after that what you need to do Okay, what you need to do? I already show you everything.
So you need to show, okay. So you have this already. So what you need to do?
Yes, just get your answer respectively. Okay, so you need to get the answer respect to the numerator and the denominator. So okay, so you calculate everything on the numerator, you get 837.5.
you calculate everything on the denominator you get 615 okay you need to get your respective values one by one okay if you don't get this one marks will not be given are you clear with this okay so do it one by one okay numerator one answer denominator one answer after that get your last conclusion okay so 837.5 Divide by 615, multiply with 100. So, you have 136.178889. Okay, so, question ask you to comment. So, you just minus up with 100, so you get to know 36.1789% increase. So, what's the increase? So, the prices of 4 types of stationeries have increased.
by 36.1789 in 2001 compared to base year 2000 so that's the answer for last period price index