I'm not sure what happened here but you need to mini the CS items from SCM and convert them into keys prices by taking key values from the SCM and not how you did it here with MPTF!

I can help you out a little bit, if you want to use these values:

Tempest:

https://steamcommunity.com/market/listings/730/StatTrak%E2%84%A2%20Nova%20%7C%20Tempest%20%28Factory%20New%29

$39.99 / Keys at $2.07 = 19.3

$31.75 / Keys at $2.03 = 15.6

Averages out to 17.5 Keys

Gloves:

https://steamcommunity.com/market/listings/730/%E2%98%85%20Sport%20Gloves%20%7C%20Bronze%20Morph%20%28Field-Tested%29

Last 5 sales (all within 24 hours):

$162.24, $166.01, $166.4, $159.59, $165.15 ($171.26 is a low-float and is excluded), averages to 163.87

$163.87 / Keys at $2.03 = 80.7 Keys

M4A1-S:

https://steamcommunity.com/market/listings/730/M4A1-S%20%7C%20Moss%20Quartz%20%28Factory%20New%29

Last 5 sales (all within 48 hours):

$86.08, $79.84, $82.52, $80.80, $80.92, averages out to 82.03

$82.03 / Keys at $2.03 = 40.4 Keys

So your sale is valued here at 17.5 + 40.4 + 80.7 + 20 = about 159 Keys

Keys have been $2.03 or below during the listed sales except for short spikes, so that's a pretty fair value