text: function calculate(day, service, hour) {
      let result;
  
      switch (day){
          case 'Monday':
          case 'Tuesday':
          case 'Wednesday':
          case 'Thursday':
          case 'Friday':
              if(service === 'Fitness'){
                  if(hour<=15){
                      result = 5;
                  }
                  else {
                      result = 7.5;
                  }
              }
  
              else if (service === 'Sauna'){
                  if(hour<=15){
                      result = 4;
                  }
                  else {
                      result = 6.5;
                  }
              }
  
              else{
                  if(hour<=15){
                      result = 10;
                  }
                  else {
                      result = 12.5;
                  }
              }
  
              break;
          case 'Saturday':
          case 'Sunday':
  
              if(service === 'Fitness'){
                  result = 8;
              }
  
              else if (service === 'Sauna'){
                  result = 7;
              }
  
              else{
                  result = 15;
              }
  
              break;
      }
  
      console.log(result);
  }
  
  calculate('Sunday', 'Fitness', 15.30);