Answer:
18% in a year
Step-by-step explanation:
We know that there are 12 months in a year. To to find the percentage of yearly increase, we just need to multiply the monthly percentage by the number of months in a year.
1.5% = 0.015
0.015 * 12 = 0.18
0.18 = 18%
So, the prices increase 18% in a year.