4 ms·If there are only two options that add up to 100% it must be perfectly symmetric.by patrickg 14y agoIf there are only two options that add up to 100% it must be perfectly symmetric.grok2 14y agoBut why do they add up to 100? What are they measuring to get the data -- traffic in the provider's networks?Danieru 14y agoBecause that is how percentages work.