The Marwadi Accounting Principle

I don't know whether this is true or not. Heard this from my father.

So, apparently, among the Marwadis, this is one way of accounting.

Suppose the maximum profit that can be made on an enterprise is 100. The actual profit is 80. The Marwadi will log that, not as 80 rs profit, but as 20 rs loss.

Interesting way of looking at things, no?