How much is MQA conversion?

I’m just listening to the Styx Mission album that was produced in all analog....... 
Great recording, btw

i’ve noticed Tidal has the MQA version , also 
great sound, too

It got me wondering 

How much is a MQA conversion for an album ?
&/or How much does MQA get each time an album/song is played?

i hope someone knows

jeff