Does Agility and Defense stack?

I was wondering how defense and agility apply to eachother now that the dodge from agility gives 90% damage reduction instead of 100%. Do they stack so that if I had 50% damage reduction from defense, and I dodged the attack, I would have 95% damage reduction, or just the 90% from the dodge?

 

Agility triggers first then defense

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Basically if you dodge an attack for 10000 damage, you'll take 1000 damage thanks to Agility's 90% DR when it procs, and if you have additional defense that gives 50% DR, it'll reduce that damage again to 500

 

I thought they didn't stack. Learned smthn new ig