The highlighting is done automatically with a conditional formatting rule applied to the range B4:G12.
The rule bang out is “Use a formula to determine which cells to format”.
Each cell in B4:G12 is evaluated separately.
Since B4 is entered as arelative reference, it will change to the cell being evaluated.
Since cell G2 is entered as anabsolute reference($G$2), it will not change.
The formula uses theSEARCH functionto match cells that begin with “mi”.
SEARCH returns a number that indicates a position when the text is found, and a #VALUE!
error if the text is not found.
The formula returns TRUE when the position is 1 and FALSE for any other value.
The value in cell G2 can be changed at any time and the conditional formatting will instantly update.
However, FIND is automatically case-sensitive.
When the text is not found, FIND returns a #VALUE error.