Like many numbers, the REAL and ADJUSTED are different.
REAL (usable) DCI is capped at 45. If you have 75 you'll still only use 45 of it.
The ADJUSTED is after something like HLD hits you. If you have 45 and get hit by HLD then you have like 20. If you START with 75 and get hit by HLD, then you'll have like 50... and still be at 45 DCI.
Same for RESISTS, but everyone knows about that.