Referencing a Value from a Number Range

Hello again, folks! So I'm currently attempting to have have a readonly text input reference a list of Values based on a number within a hidden element based on a range.  Specifically, I'm creating a sheet for a game based in the Basic Roleplaying system which has a number of tables that rely on a range of values.  In this particular case, I want a text box to display the relevant Damage Bonus based on the combination of the Strenght and Size scores.  The table is as follows: 2 to 12 = -1d6 13 to 16 = -1d4 17 to 24 = none 25 to 32 = +1d4 33 to 40 = +1d6 41 to 56 = +2d6 and so on.  At present, the html for this particular section is: <span class="label dmgbonus" value="Dmg. Bonus"></span> <input type="hidden" name="attr_dmgcalc" value='(ceil(@{strength_base} + @{size}))'/> <input type="text" class="content dmgdis" name="attr_damage_display" readonly/> Essentially, I need for the input with "attr_damage_display" to display the appropriate damage modifer (none, -1d4, -1d6, etc.) which would be pulled based on the value of "attr_dmgcalc" and where it's number falls in the range of values.  To be honest, I have absolutely no idea how I would do this with pure html or sheetworkers, especially considering that I still know so little about how sheet workers operate and I can't find any examples similar to what I'm doing here. Any help would be greatly appreciated and I can't thank you enough for your help thus far!

A sheet worker would be the best way to do this. There is a RQ Glorantha seet on the github already that probably does it. But if you need to create it yourself (remember to put it inside a script block): on ( 'change:strength change:size' , function () {         getAttrs ([ 'strength' , 'size' ], function ( values ) {             let str = + values . strength || 0 ;             let siz = + values . siz e || 0 ;             let damage = str + siz ;             let dice = '-1d6' ;             if ( damage > 32 ) {                 dice = '+' + Math . ceil (( damage - 24 )/ 16 ) + 'd6' ;             } else if ( damage > 24 ) {                 dice = '+1d4' ;             } else if ( damage > 16 ) {                 dice = 'none' ;             } else if ( damage > 12 ) {                 dice = '-1d4' ;             }             setAttrs ({                 damage_display : dice             });         });     }); Also, I'd recommend changing this line                 dice = 'none'; to                 dice = '+0'; That way you can use the damage_display value in damage rolls directly. A text value would cause it to fail.