Hi MB,
you are not far off the track,
APR active:
if a FADEC is sensing a power drop >=25%, power will increase by approx. 11% = 111%PU only in TOGA or flex take off modes!
PU passing 45%, FADEC has a closer look to your NG (guess it was 56%) try's to relight the whole thing. further drop: shut down and feather.
if your APR button is selected off:
not a "big" change, you will have only 100%PU available.
brgds
mjv