00:01
Okay, let's figure out this cpi.
00:03
So we're gonna start with our base year, which is 2009.
00:13
Here, the price of a basket is the sum of all of these things in these quantities.
00:19
So apples are 3 ,000 at $2 per.
00:24
That's 6 ,000.
00:29
Bananas, there were 6 ,000 at $3 per, which is 18 ,000.
00:37
For oranges, there were 8 ,000 at $4 per, which is 24 ,000.
00:49
So basically, this is a sum of $48 ,000, which is kind of insane for just fruits, you know? but then when we go to 2010, got a bit of a change.
01:08
Our basket here has the same components because that's what makes the basket a basket, but different amounts and different prices.
01:21
So we've got 4 ,000 apples at $3 per is $12 ,000.
01:27
We've got 14 ,000 bananas at $2 per, and then 8 ,000 oranges at $5 per.
01:48
Whoa, i wouldn't pay $5 for an orange.
01:54
Okay, this sums up to 80 ,000.
01:58
Okay, so in the reference year, our cost is 48 ,000.
02:05
Reference year, that's our cost.
02:11
And then we're gonna basically scale this down to $100, and you'll see exactly how i do that in a second.
02:18
But then we have 80 ,000.
02:21
80 ,000 over 48 ,000 is basically the ratio of each year, so to the base year...