Did you apply overpay on the first sale? The item was sold for a Stormy Storm Shooter's Sola Topi and 45 ref which roughly equates to 3.2 keys. So 1.1-1.2 buds (13.75-15 keys) + 3.2 keys (in metal) = 1.356-1.456 buds (16.95-18.2 in keys).

Applying overpay using the ranges

1.356-1.456 x 0.9 = 1.220-1.310 ~ 1.2-1.3 buds.

Using the average

1.15 x 0.9 = 1.035 ~ 1 bud

For the second sale: you sold the GC Barnstormer for a Memory Leak Familiar Fez.

(Assuming that you offered him the hat)

Using the ranges

1.35-2 x 0.9 = 1.215-1.8 ~ 1.2-1.8 buds

Using the average

1.68 x 0.9 = 1.512 ~ 1.5 buds.

Assuming my math is correct and I got all the details right, the price should be 1-1.5 buds but you can't have a range with just one sale.

This is a prickly situation because there are two sales at difference prices so I won't know what price you could set it to.

But please, if there's an error, please point it out.

All in all, downvote.