m code to Split decimal number from text in power query

I have a huge several csv file of 20, 000 records each which I combine in power query , the csv has many headers however my header MTT_MCH has values with decimal points, but csv file itself digits appears text 1008 and should be reading 10.08.

All digits have two decimal places .

How to split the decimal number from text . from 1008 to 10.08 e.g 450 to 4.50 .

Is there a special M CODE that can do this in power query

in the table the values are all numbers so table1[MTT_MCH]/100 would work

if they are truly text
=LEFT(Table1[MTT_MCH],len(Table1[MTT_MCH])-2)+right(Table1[MTT_MCH],2)/100