How to label each bar in a subplot?

Hello all. Is there a way to label each bar in a bar plot when used in subplot. I tried with same code as used for normal bar chart, but wasn't able to find the solution. Your help is appreciated.

For normal bar chart

    f=figure;
    bar(xval2,per_cond1,0.4)
    labels=[70.2,19.8,10];
    text(xval2, per_cond1, cellstr(num2str(labels)), 'VerticalAlignment','bottom', ...
                             'HorizontalAlignment','center')

But the same when used for subplot, It shows error

    subplot(2,2,i),bar(xval2,combined_graph_100m(:,2),0.4)
    labels=[70.8,19.2,10];
    text(xval2, combined_graph_100m, cellstr(num2str(labels)), 'VerticalAlignment','bottom', ...
                             'HorizontalAlignment','center')

But there is an error popping up which says

??? Error using ==> text
Value must be a column or row vector