leaflet. How to replace the sum of markers in a cluster with the sum of values ​​in these markers?

Question

OpenStreetMap

Good afternoon.
Fellow Leaflet experts, a question for you)
In this example, the
Cluster shows the number of markers in the cluster

Each marker has a numerical value:

Let's say there are 2 markers in the cluster with the numbers 100 and 200. How to finally make it show not the number of markers, but the sum of the values ​​of these markers?
thanks in advance

Answer 1

Rewrite icon code
https://github.com/Leaflet/Leaflet.markercluster/b...