Is this normal weight loss?

Hey ladies not sure if I'm worrying for no reason just wanted to ask if this is normal. I was 145lbs when I got pregnant then gained 55lbs during pregnancy making me 200lbs when I delivered. I am now 127lbs and baby is 14months old. Total weight loss is 73lbs in 14months. This seems like a lot of weight to lose but then again I did gain a lot during pregnancy. Is this normal? Does it sound like a lot or normal post pregnancy since I did gain a lot?