You can use following after your search query.
index=summary earliest="-1d@d" latest="-1d@d+1h" | fields category, total_bytes, cs_uri_authority | eval domain=lower(cs_uri_authority) | stats sum(eval(round(total_bytes/1024/1024,2))) as b by category, domain | sort -b | stats sum(b) as CategoryMBytes, list(domain) as Destinations, list(b) as DestinationMBytes by category | eventstats sum(CategoryMBytes) as TotalMBytes | eval PercentOfTotal = 100 * CategoryMBytes / TotalMBytes . "%" | sort -CategoryMBytes | rename category as Category | table Category, CategoryMBytes, PercentOfTotal, Destinations, DestinationMBytes | head 10
| eval Destinations=mvindex(Destinations,0,10)| eval DestinationMBytes =mvindex(DestinationMBytes ,0,10)
Just to tell you, it will not affect values in other columns, it will just truncate the values shown on the Destinations and DestinationMBytes. Hope this helps.
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