The portal will show the actual test scores, not the converted scores. Imagine the emails and phone calls if a score appeared in the portal that was different from the test result.
Roadking's table explains why a conversion must be made in order to evaluate applicants taking different tests. Scores are valid for five years, so scores from the old SAT test are still being considered for soldiers, college candidates, and any other applicants that may have taken the old SAT test. Additionally, percentile ranges are different for the SAT and ACT, as can be seen in the table.
Those difference must be reconciled to evaluate applicants apples to apples. USMA does this by converting test scores to a standardized basis that can be used to calculate WCS points - possibly by using percentiles, but only admissions knows exactly how it is done.
To my knowledge USMA does not convert ACT scores.