A professional tries to post without typos, especially if he needs help from strangers via a global board
Your typo made the whole story absurd, and as you just committed this typo you made 5 more in the reply.
Please use a spell checker, in the Chrome browser it is already included, otherwise click the abc icon to check what you wrote and re-read it before you click submit.
Now to your problem. Post a screenshot to give others a chance to evaluate. From your story I just think you overlooked a piece of information and do actually not look at the same line in MI20 as you had in your count. e.g. a different stock type.