Flutter align Column of text with single text - flutter

Question

I would like to make this in Flutter:
My code:
Row(
children: [
Column(
crossAxisAlignment: CrossAxisAlignment.end,
children: const [
Text('Total', style: TextStyle( color: Color(0xFF68B762)),),
Text('Km', style: TextStyle( color: Color(0xFF68B762)),),
],),
const Text('612', style: TextStyle(fontSize: 30, fontFamily: SecondaryFontMedium, color: Color(0xFF68B762)),),
],),
Result:

Answer 1

Add \n between "Total" and "Km". Use like this way,
Row(
children: [
Text('Total\nKm', textAlign: TextAlign.end, style: TextStyle(color: Color(0xFF68B762))),
Text('612',
style: TextStyle(
fontSize: 30,
fontFamily: SecondaryFontMedium,
color: Color(0xFF68B762))),
],
)
Result:

Answer 2

If you want the Total and Km closer together you could try setting a height in the style. For example
Text('Total', style: TextStyle(height: 1, color: Color(0xFF68B762))),
Text('Km', style: TextStyle(height: 1, color: Color(0xFF68B762)),),
result:

Answer 3

I don't know if the error is the spacing, or that the letters on the left are not aligned, but I got something like this :
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Container(
height: 40, // change this
color: Colors.white,
child: FittedBox( // this is important
child: Column(
crossAxisAlignment: CrossAxisAlignment.end,
children: const [
Text(
'Total',
style: TextStyle(color: Color(0xFF68B762)),
),
Text(
'Km',
style: TextStyle(color: Color(0xFF68B762)),
),
],
),
),
),
Container(
height: 40, // change this
color: Colors.white,
child: const FittedBox( // this is important
child: Text(
'612',
style: TextStyle(
height: 1, // this is important
fontSize: 45,
color: Color(0xFF68B762),
),
),
),
),
],
)
What I did was to add both Container with some equal size (40 for example), then using the Widget FittedBox makes that when you lower the height of the container, the letter adapts and you don't have problems...
Now in the second letter to remove the "padding" is added the height : 1 in the TextStyle, if you can read more of it would be good so you don't have problems but basically it makes it possible to align with the left letters.
Try to edit the height Container and you'll see

Answer 4

try this,
return MaterialApp(
home: Scaffold(
body: Center(
child: Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Text(
'Total\nKm',
textAlign: TextAlign.right,
style: TextStyle(color: Color(0xFF68B762)),
),
SizedBox(
width: 5,
),
Text(
'612',
style: TextStyle(
fontSize: 30,
// fontFamily: SecondaryFontMedium,
color: Color(0xFF68B762)),
),
],
),
),
),
);
Happy Coding!