Find minimum value from object in Javascript

obj_min.js

let price =  {
  "vendorPrice": 150000,
  "normalPrice": 229000,
  "pPrice": 90000,
  "specialPrice": 169000,
  "promoPrice": 0
};
      
function minPrice(prices){
   let arrPrices = [];
   for(let key in prices){
    if(prices[key] == 0 || key == 'vendorPrice'){
      continue;
    }
    arrPrices.push(prices[key]);
   }
   Array.min = function( array ){
    return Math.min.apply( Math, array );
  };
  return Array.min(arrPrices);
}

console.log(minPrice(price));