Check Box being selected from DB

[stunning_Sunset0634]

I have 2 check boxes 100% and another check box that says other with a text field.

I have database field called contribution amount.  How can I check the box if the DB value is 100

and when the DB value isnt 100 i want the other check box selected with the contribution amount to appear

i tried to do showif contribution !=100 but that didnt work  is there another way i can display it

[Nesa Nurani]

Use this as custom calculation script of DB field (change field names to your actual field names):

var DB = Number(event.value);
//Check checkbox if value equal 100
this.getField("Check Box1").checkThisBox(0, DB === 100 ? true : false);

//Check 'Other' checkbox if value is not 100 and show amount in field called 'Show Amount'
if(DB && DB !== 100){
 this.getField("Other").checkThisBox(0,true);
 this.getField("Show Amount").value = DB;}
else{
 this.getField("Other").checkThisBox(0,false);
 this.getField("Show Amount").value = "";}