Format aggregated footer value


I have attached footer which will aggregate all leaf node’s(#stat_tree_total_leaf) value and show.
Here I want to format(scaling, prefix, sufix…etc) the aggregated value which is in footer.
Already i have custom colType which do this at cell level for each node(row)

Is there any method that i can override and place the value in footer.
or else
Is there any other way to achieve this.

Please somebody help me to do this. Thanks in advance.

Please, try to use the getFooterLabel/setFooterLabel methods to manipulate with the data of the footer: … label.html … label.html