Is there a mistake in the calculation or do I think wrong?

400-200-25
4 Players

CO - 5000 - goes ALL IN
BU - 1500
SB (ME) - 3000 --- I want to know my POT ODDS
BB - 4000

my way of calculting:
1.) BLINDS + ANTES = 700
2.) EFFEKTIVE RAISE SIZING ( because i allready postet ANTES and SB 2775
3.) / what i have to pay

700 + 2775 = 3475 / 2775 = 1,25
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my coach has an other way of calculating

400 + 200 + 100 + 3000 (is this correct?) / 2775 = 1,33
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2nd SPOT

how to calculate for a reshipp

OPENRAISE MP
ME on the BU with 30K

BLINDS + ANTES + MY WHOLE STACK OF 30K (- THE ANTES... HIHI) / MY WHOLE STACK?





btw... this Preflop POT ODDS stuff was so heavy and felt so ouch in my head... haha

ah and... is this normal that the RAISER at first CALLS MY RAISE ( do you say that when calculating ?) or is this common sense and we dont say this and let him direct raise ALL of his raise

fe. in the reshove spot
ME on the BU at first CALL his openraise --- and THEN make another raise or direct raise my STACK in the pot?

1st spot: not different forms to calculate, basically you're right and your coach is wrong. He's counting 5 antes (and there's 4 players)

2nd spot: this one gave me a slight migrain interpreting, sorry mate