Let the initial price be 100. Price after 1 month is 101.9. common ratio is r = 101.9/100 = 1.019
After 12 months, the price will be:
A1 x r ^n-1
= 101.9 * (1.019)^12-1
= 101.9 * 1.019^11= 125.34
So the yearly increase would be: 125.34 – 100 = 25.34
Therefore, the yearly price rise percentage is 25.34/100 x 100 = 25.34%
