Help me decided which way to bid this

Trying to be reasonable but keep the lights on. Still new to bidding and pricing. My work is pretty decent, it doesnt look bad. ive gotten a 5 star rating and all my work by referral, so it speaks for itself. I talked to a pro and he told me im way under bidding. Ive had customers tell me i under bid lol so im trying to dial it in help me figure this out

Time and materials

100/hr

92/hr 2 guys at 23hr each

144 12 nozels

240 12 Heads

60 for pressure regulator

30 (unknown 4< fittings)

150 50ft> worth of pipe

OR

Proposal

145 for 16 heads

140 man hours

64 for 16 sprinkler nozels

120 to install heads 7.5each

150 trenching

1.5 prr foot installed

10 for fittings

Total 644M 840total

Proposal needs to be tweaked, after talking to pro it seems a bit low. Now I've trippled my material prices. Let me know what you think

Just re worked the proposal, and to me this seems to high but idk.

Proposal

432 for 16 heads

552 6 man hours

144 for 16 sprinkler nozels

120 to install heads 7.5each

150 trenching

1.5 prr foot installed

10 for fittings

Total 1443total

Trying to be reasonable but keep the lights on. Still new to bidding and pricing. My work is pretty decent, it doesnt look bad. ive gotten a 5 star rating and all my work by referral, so it speaks for itself. I talked to a pro and he told me im way under bidding. Ive had customers tell me i under bid lol so im trying to dial it in help me figure this out

Time and materials

100/hr

92/hr 2 guys at 23hr each

144 12 nozels

240 12 Heads

60 for pressure regulator

30 (unknown 4< fittings)

150 50ft> worth of pipe

OR

Proposal

145 for 16 heads

140 man hours

64 for 16 sprinkler nozels

120 to install heads 7.5each

150 trenching

1.5 prr foot installed

10 for fittings

Total 644M 840total

Proposal needs to be tweaked, after talking to pro it seems a bit low. Now I've trippled my material prices. Let me know what you think

Just re worked the proposal, and to me this seems to high but idk.

Proposal

432 for 16 heads

552 6 man hours

144 for 16 sprinkler nozels

120 to install heads 7.5each

150 trenching

1.5 prr foot installed

10 for fittings

Total 1443total