How is troop loss calculated?

[SonofaB]

Does one one know exactly how troop loss is calculated? For example, if I send 50 lancers and 50 sentries to a barb city with 10 lancers and (let's assume, wall level 2). I won but lost 5 lancers and 5 sentries. How are the loss calculated based on his defensive units?

[JimBo]

It is an algorithm based on % your total attack and there total defense is taken into play. If you are to lose 10%

Don’t forget that a wall not only provides defensive bonus it also provides base defense. If you destroy all the troops but not the wall you will still lose some troops

[aaronnorth]

There is also morale to add into that

[SonofaB]

Thanks for the replies. I am aware of the above. You can see the differences in the simulator. I was hoping to see if someone have the intimate knowledge of the calculation. Because it's not readily apparent to me.