Hist plot

[Oscar Bayona Candel]

Hi all,
 
An easy question.
 
I have a row vector A=[0.02 0.04 0.04 0.01];
 
I want to plot this vector trough "hist" plot function. I want to show on top of each bar the value but in percentage. It is possible to make it?
 
Thanks in advance¡¡¡

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