To determine the percentage increase in cases of phones being accidentally dropped into toilets compared to cases of phones being dropped on the ground, you would typically need specific numerical data for both categories (the number of toilet incidents and the number of ground incidents). However, since that data is not provided, I cannot calculate the actual percentage increase.
The multiple-choice options you provided (15%, 25%, 36%, 48%) suggest there is a known calculated increase, but without the original numbers, I cannot definitively identify which option is correct.
If you have the specific numbers for the two incidents, I can help you calculate the percentage increase. The formula for percentage increase is:
\[ \text{Percentage Increase} = \left( \frac{\text{New Value} - \text{Old Value}}{\text{Old Value}} \right) \times 100 \]
If you provide the values, I can help you find the answer!