Kavi Bhushan describes this in poem on Shivaji comparing his valour to 'Kaurav ke ang par paarth jo pekhiye"
adharma will delay him and there was no time to lose
That was 7 of the 11 divisions of Kaurava Army (almost 70% ) and that was the size of Pandava Army!!
44 of Durydhana's brothers slain by Bhima taking the tally to 70/100
Second turning point after fall of Bhishma on Day 10