Dataset replace a particular column

[Myusrename001]

Team,

Based on my rate column - I wanted to replace under particular column under aligned % ( also the data % will change based on the individual account - hence i don't want to make this as constant) . can anyone help me ... thanks in advance.  

For example: 

Before 

Header
25%	15%	12.80%	10%	rate
				12.8	MY Data Set
				25
				25
				25
				25
				25

After 

Header
25%	15%	12.80%	10%	rate
		12.8		12.8	MY Data Set
25				25
25				25
25				25
25				25
25				25

[IraWatt]

Looks like a duplicate of: Solved: Re: Replacing the text from particular column. - Alteryx Community