How do you make the percentage button work on a basic calculator

Hi. I'm making a calculator on MATLAB and wondering how to get the percentage button to work like on a regular calculator that when upon pressed it converts it into a decimal. Here is the only thing I have so far. Note, I'm in Mexico that's why some words are in spanish:

dato =strcat(app.BResultado.Value, '%');

app.BResultado.Value=dato;

BResultado is what's displayed on screen

Answer 1

[Geoff Hayes]

@Alejandro Mandujano - don't you just want to divide the number by 100? So (assuming your BResultado is a text (not numeric) field, then you would do something like

dato = str2double(app.BResultado.Value);
dato = dato / 100.0;
app.BResultado.Value = num2str(dato); 

[Alejandro Mandujano]

Thank you! This worked!