To find the percentage of buttons that were large, we first need to determine the total number of buttons. Kinsley has:
- 16 large buttons
- 16 small buttons
The total number of buttons is:
\[ 16 + 16 = 32 \]
Next, we find the percentage of buttons that are large. Since there are 16 large buttons, we can calculate the percentage as follows:
\[ \text{Percentage of large buttons} = \left( \frac{\text{Number of large buttons}}{\text{Total number of buttons}} \right) \times 100 \]
Substituting in the values we have:
\[ \text{Percentage of large buttons} = \left( \frac{16}{32} \right) \times 100 \]
Calculating the fraction:
\[ \frac{16}{32} = 0.5 \]
Now, we can find the percentage:
\[ 0.5 \times 100 = 50 \]
Thus, the percentage of the buttons that were large is:
\[ \boxed{50%} \]