Loot Protected/Available

I've been playing clash of clans for months now, but I got this idea from playing Boom Beach a week ago.

When I accumulate resources for an upcoming upgrade, I usually loot more than what I need to act as a buffer in case someone attacks me and gets my loot. I usually make mental calculations but it would be very handy if it were calculated for me, not to mention how helpful it would be to new players or those who do not memorize the percentages. So how about adding how much loot is "protected" when clicking the info of a resource storage, assuming that the attacker/looter will be of the same TH level (so no loot penalty), just to give the player an idea of how much loot is "unprotected". What do you guys think? :D