its this way on everything, you have credit card transaction fees and then patreons fees. Credit card fees is where most of it goes on the $1 because credit card companies have a minimum fee amount. But the ratio gets better on the higher levels, which is why patreon recommends $3 minimum because is meets these minimums on a % level. So you get 2.37 on a $3 patreon. Same goes for subscribestar too. Some brick and morter buisness wont allow you to use credit card for transactions under $5 because of this same thing.