What makes this coin 100 on the rarity scale

Hello, does anyone know why this is listed as 100 and do you have any extra information on the coin please as I appreciate the help. Thank you

Whatever item you are talking about has an NRI of 100 because nobody on Numista has listed one in their collection.

 Yes, need to add a link at least - as shown below for example. 

Any newly-created page will have 0 members owning it 

until they start adding them to their collections. 

 Such as - N#470058 

A 2025 coin with 10,000,000 mintage so over time the 

current 100 NRI will go down … 

https://en.numista.com/help/what-is-numista-rarity-index-nri-79.html 

The rarity value is how many members have the coin not its actual mintage rarity