Angular 2 - if condition getting true for all values

i have been stuck at a point , my if condition if returning true for all condition, i am checking value greater or not

Code

 hideAmountModal() {
    var self = this;
    self.home_delivery_charge = self.storeService.fetchHomedeliveryData(self.shopId);
    self.home_delivery_charge.subscribe((res: any) => {
      for (var i = 0; i < res.length; i++) {
        if (self.deliveryData.delivery_charge > res[i].amount) {
          self.check_delivery_charge = true;
          console.log('Deliverycharge',self.deliveryData.delivery_charge,'result',res[i].amount);
          console.log('deliver charge is greater',self.check_delivery_charge);
        }
        else if (self.deliveryData.delivery_charge < res[i].amount){
            self.check_delivery_charge = false;
        }
      }
    })
    self.DeliveryChargeValue = true
    self.selectAmountModal.hide();
  } 

the console i get here is below

where i have done wrong!