Christian theology doesn't typically frame salvation as a percentage of belief over a lifetime. The core tenet is that salvation is received through faith in Jesus Christ and his sacrifice for the forgiveness of sins.
Different denominations and theological perspectives within Christianity have varying views on the specifics of salvation:
* Some emphasize a moment of conversion and ongoing faith: They might say that if someone genuinely accepted Christ at some point in their life and maintained that faith (though perhaps with periods of doubt or struggle), they could be considered saved.
* Others focus on perseverance: They might argue that true faith is demonstrated by a life of obedience and good works, and a sustained commitment to Christ is essential.
Ultimately, the judgment of who enters heaven is considered to be God's alone. Christian teachings generally emphasize God's grace and mercy, but also the importance of genuine faith and repentance.