Final answer:
The percentage change in the market value can be calculated using the formula (Percentage change in P/E - Percentage change in earnings per share) / (1 + Percentage change in P/E) * 100. Plugging in the given values, the percentage change in the market value is 21.37%.
Step-by-step explanation:
The price-earnings ratio (P/E) is the ratio of the market value of one share to the earnings per share. To determine the percentage change in the market value when the P/E increases by 17% and the earnings per share decrease by 8%, we can use the formula:
Percentage change in market value = (Percentage change in P/E - Percentage change in earnings per share) / (1 + Percentage change in P/E) × 100
Plugging in the given values:
Percentage change in market value = (17% - -8%) / (1 + 17%) × 100
Percentage change in market value = (25%) / (1.17) × 100
Percentage change in market value = 21.37%