Mine

  elseif (%style == -t) {
    if (!$hget(%table,%skill)) %display $c2(%rsn)  $c1(does not appear in the hiscores for) $c2(%skill)
    else {
      if ($right($2,-1) isnum 1-99) {
        if ($right($2,-1) > 99) { %display levels go from 1 to 99. | halt } 
        if ($right($2,-1) <= 98) { var %xpfrom = $xp($3) } 
        else { var %xpfrom = $2 }
        var %xpto = $xp($right($2,-1))
        var %xpdif = $calc(%xpto - %xpfrom)
        if (%xpdif < 1) { %display You would already be level $3 with $bytes(%xpfrom,bd) 1Experience! | halt } 
        if (%xpto) { 
          if ($right($2,-1) <= 98) { %display The xp required from level $2 $+ $chr(40) $+ %xpfrom $+ xp $+ $chr(41) to level $right($2,-t) $+ $chr(40) $+ %xpto $+ xp $+ $chr(41) is $bytes(%xpdif,bd) $+ . } 
          else { %display From $bytes($2,bd) experience, you would need $bytes(%xpdif,bd) more Experience to get to level $3 $+ . } 
        } 
        else { Halt } 
      } 
      else ($right($2,-1) <= 99) { %display From level 1 to level $right($2,-1) requires $bytes($xp($2),bd) experience. } 
    }
  }