Bought for 286.06 Singapore Dollars:

https://i.imgur.com/4f0JJLt.png

Median key price at the time of purchase:

3.25 Singapore Dollars

https://i.imgur.com/sfipyqQ.png - Lowest at 3.12

https://i.imgur.com/Kbd1bhr.png - Highest at 3.38

3.38 + 3.12 / 2 = 3.25 for median key price in the past week

Item history:

https://backpack.tf/item/16135594205