I have below data in string format
Size
670.2mb
668.4mb
3.2gb
1.1gb
479.7mb
I want to convert this column in below format
Sizw in GB Size in MB
0.6544 670.2
0.6527 668.2
3.2 3276.8
1.1 1126.4
0.4684 479.7
how can I do that?
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