Use a title such as “Club choices of 80 pupils”.

Percentages are \(\displaystyle \frac{32}{80}=0.4=40\%\), \(30\%\), \(20\%\) and \(10\%\).

Check the counts total 80 and percentages total 100. One possible symbol key is “one symbol = 4 pupils”, giving 8, 6, 4 and 2 symbols.

Any clear, consistently scaled design containing these correct values and labels is valid.

Answer

One valid design gives Sport 40%, Music 30%, Coding 20%, Art 10%, with counts 32, 24, 16 and 8.