In its original submission to the Victoria child abuse inquiry, the church said it had paid compensation to 620 victims, the Australian Broadcasting Corp. reported Thursday.
Further analysis of church documents revealed at least 849 were abused since the 1950s.
The new submission also revealed more information about the number of sex offenders in the church's ranks, saying 269 men and women were found guilty of abuse, the broadcaster said.
Those found guilty include 114 brothers, 98 priests, 42 lay people, nine nuns, two seminarians and two listed as unknown.
Astronomers offer more expansive view of universe
Attkisson leaves CBS News, reportedly over network's 'liberal bias'