why the function doesn't work, pretty straightforward, change needs to get to 0.
i presume will be another more efficient way to solve this problem, but whats bug me is the fact that "change" get weird numbers.....help.

 function checkCashRegister(price, cash, cid) {
      var change= cash-price
      var money={
        'PENNY':0.01,
        'NICKEL':0.05,
        'DIME':0.1,
        'QUARTER':0.25,
        'ONE':1,
        'FIVE':5,
        'TEN':10,
        'TWENTY':20,
        'ONE HUNDRED':100}
        console.log(change,'start')
        let i=8;
      while(change>0){
    
    // console.log(cid[i][1])
      if(change<cid[i][1]&&change>money[cid[i][0]]){
        console.log(cid[i][0], 'cid')  
        console.log(money[cid[i][0]],'money')
        change=change-money[cid[i][0]] 
        console.log(change, 'change') 
        i=8;    
  }  
  i--
  }
  
}

checkCashRegister(19.4, 20,
[["PENNY", 1.01], 
["NICKEL", 2.05], 
["DIME", 3.1], 
["QUARTER", 4.25], 
["ONE", 90], 
["FIVE", 55], 
["TEN", 20], 
["TWENTY", 60], 
["ONE HUNDRED", 100]]);