How to get totall count of checkbox value

How to get totall count of checkbox value

HTML <div class="form-check"> <input class="form-check-input" type="checkbox" id="check-0" value="20"> <label class="form-check-label" for="check-0"> 5GB Storage Space ($20) </label> </div> <div class="form-check"> <input class="form-check-input" type="checkbox" id="check-1" value="30"> <label...