For an arbitrary large number I need to round() it up to the hundreds place
if it is not divisible by 100 and leave it untouched if it is.

So 1100 would round to 1100 and
1101 would round to 1200.

Is there a clean way to do this?

Currently I'm:
$scale = round($scale+49, -2); // round up to hundreds.

But this is messy.


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