Formating number type in charts data labels (removing zeros)

Hi friends quick question,

I know that in order to remove zeros from charts, for instance with percentages; I can format number type as custom 0,0%;"";"". But how can I do this without having always one decimal place (only when decimal places exist), for instance I want 8,4% to show up as such, but 8,0% I don't, I want an 8%.

Thanks