5% is shorthand for 0.05. Therefore, 5% of 50000 is 0.05 * 50000 = 2500.

More generally: x% is shorthand for x/100. Therefore, x% of y is x / 100 * y.

thanks, this has given me much idea

Hello bigup401,

Do you mean something like that?

percentage = partialAmount / totalAmount
totalAmount = partialAmount / percentage
partialAmount = percentage * totalAmount
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If so this is a not a Perl related question. Unless if you mean if there is a module that can do this calculation for you?

Update: Also look at the Math::PercentChange is this what you are looking for? From to percentage difference?

BR / Thanos

Any. which can do for me that calculation . if there is a module or a example without a module i appreciate

Hello bigup401,

I do not know if you saw my updated answer but here is an example that you can use a module and it will do the calculation for you (see below):

#!/usr/bin/perl
use strict;
use warnings;
use feature 'say';
use Math::PercentChange qw(f_percent_change);

my $from = 10;
my $to   = 15;
say f_percent_change($from, $to, "%.03f");

__END__

$ perl test.pl
50.000%
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Hope this helps, BR.

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