Complex sentence: During the bloodiest battle of the war the British lost 226 troops, with another 828 wounded, and the Colonists/Americans counted 140 dead, 301 wounded, and 30 captured.
Split into simpler sentences: During the bloodiest battle of the war, the British lost 226 troops, with another 828 wounded. The Colonists/Americans counted 140 dead, 301 wounded, and 30 captured.