Most Helpful Girl
It will not go down. Your visible xper will remain the same. Your rank will also remain the same.
However, your redeemable xper will decrease depending on the prize you choose.
Hover your mouse on the top right to your profile name and you will see an xper tab. Click on it. On the right there is a table, from which you can always check the redeemable points you have gained.
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