RIGHT function

Hi there

In my spreadsheet, I import a block of text from an external source (not Excel) into (in Example 1), column N. I automatically capture the order value shown in the text by using the RIGHT function a couple of columns along. =RIGHT(N138,5)

I have set this to 5 digits, as most of the values are this (for example, £75.80... £79.99... £71.98 and so on). On a few occasions, the order value exceeds this and requires 6 digits (for example, £220.98... £354.25... £256.66 and so on). =RIGHT(R138,6)

Is there a better way to express the formula so that it can capture the last 5 digits if it's 5... and/or the last 6 digits if it's 6 - meaning that I don't have to manually check and correct these few anomalies?

Many thanks
Terri