Display the data from uitable to statics text box

so i created a table, that requires the user to input their data into the table which is editable. i want to capture the data to do a calculation and display it out in a statics text box.

@ uitable2_callback

clc
set(handles.uitable2,'ColumnFormat',{'numeric'})
K = cell2mat(get(handles.uitable2,'data'));
handles.uitable2 = K ;
guidata(hObject,handles)

please guide me through because i learn matlab by myself so i have no idea how the code works