To find the percentage of interest paid, you can use the formula for calculating interest percentage:
\[ \text{Interest Percentage} = \left( \frac{\text{Interest Amount}}{\text{Principal Amount}} \right) \times 100 \]
In this case, the interest amount is $29.61 and the principal amount (the deposit) is $987. Plugging in the values:
\[ \text{Interest Percentage} = \left( \frac{29.61}{987} \right) \times 100 \]
Calculating this:
\[ \frac{29.61}{987} \approx 0.03 \] \[ 0.03 \times 100 \approx 3% \]
Thus, the percentage of interest paid is 3%.