Answer:
bags of popcorn = 10%
sodas = 15.78%
overall increase was 12.5%
Step-by-step explanation:
We must calculate the unit price of each product, before and after.
Before:
bags of popcorn = 7.50 / 3 = 2.5
sodas = 3.80 / 2 = 1.9
Then:
bags of popcorn = 8.25 / 3 = 2.75
sodas = 4.40 / 2 = 2.2
Now, we calculate for each:
bags of popcorn = 2.75 / 2.5 = 1.1
which means that the increase was 10%
sodas = 2.2 / 1.9 = 1.1578
Which means that the increase was 15.78%
If we calculate the percentage of total increase it would be:
(2.75 + 2.2) / (2.5 + 1.9) = 1,125
Therefore the overall increase was 12.5%