What happened as the mass of the sun increased during the formation of the solar system?

Essentially, an increase in mass means an increase in gravity, while a decrease in mass means a decrease in gravity. ... If the Sun's mass abruptly halved, it would certainly have a huge impact on these key points; it would grow cooler and redder and eventually transform into a red dwarf.

2%? i tried finding the exact sorry if it's not 100% correct ; -;