Each RP was 3.75% of faucet base reward during that time but not now. TheQuin made the calculation based on the BTC price of that time. But I got confusion as you said “Each reward point is worth”. Based on current BTC price each RP is worth 18.2% of faucet amount (base reward).
Each RP is now 18.2% of the base reward of the faucet, because we can't have less than 1 satoshi. If we could have less than 1 satoshi, 1 RP would be now 0.2 satoshi.
For any bitcoin price higher than 5000 dollar, 1 RP has to be 1 satoshi unless they add the 9th decimal number in future.
BTW, you have quoted from ‘dezoel’ post but you mentioned ‘Saint-loup’ post link.
Thanks for noticing my mistake. I just edited that post.