To calculate the percentage of club members who voted for Leila, we use the formula for percentage:
\[ \text{Percentage} = \left( \frac{\text{Number of votes for Leila}}{\text{Total number of members}} \right) \times 100 \]
Substituting the given values:
\[ \text{Percentage} = \left( \frac{52}{65} \right) \times 100 \]
Now, we calculate \( \frac{52}{65} \):
\[ \frac{52}{65} = 0.8 \]
Next, we multiply by 100 to convert to a percentage:
\[ 0.8 \times 100 = 80 \]
Therefore, the percentage of the club members that voted for Leila is:
\[ \boxed{80} \]