I haven't been a contributor with Canva very long, so maybe there is something obvious I don't get, but I cannot find any good breakdown of commissions on their site.
Usually my earning is made up by subscription earnings and individual sales.
So far all my individual sales have been small ones, either $1 or $3, of which I seem to have gotten either a 35% or 39% commission, so $1.05 for a $3 sale and $0.39 for a $1 sale.
 This week I got my first big individual sale for $60. Sadly there is nothing to be happy about, because my commission for it was $1.15. 
So I only got a commission of 1.9%? Can anyone explain to me why the extreme low commission on bigger sales?