css - Sass expressions values precision difference -


this materialize.css source file _grid.scss

  $i: 1;   @while $i <= $num-cols {     $perc: unquote((100 / ($num-cols / $i)) + "%");     &.m#{$i} {       width: $perc;       margin-left: 0;     }     $i: $i + 1;   }

this part of scss file creates column grid styles. when i've tried replace (loop same, body changed): 

  &.offset-m#{$i} {     margin-left: 100% / ($num-cols / $i);   }

the result values different in precision. (took values couple of result classes).

original: width: 8.33333%; new: 8.3333333333%;

original: width: 16.66667%; new: 16.6666666667%;

  1. why there difference between sass "inline" expression , $perc variable?
  2. is there actual difference browser? maybe faster rendering? did materialize.css reason?


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