const char add_price=200;

 if(old_add_price==1 && sw_add_price==1)
                                               {
                                                flag_add_price=1;
                                                old_add_price=0;
                                               }

 if(flag_add_price==1)add_price_cont++;

if(add_price_cont>125)//waitting 0.250 sec
                              {
                               add_price_cont=0;
                               flag_add_price=0;
                               value_start +=add_price;
                               value_start_old +=add_price;//update value

                              }

void calculate_price()
{

  // value_start=125 start value
 // car is stop then Price =125  , add 30 every 10sec
 // car running then Price =125  , add 30 every 100 meter
 // speed =m/s, speed =no. puls per second . then if speed=100 add to Price 30
 update_data();

 if(Price_change==0)// Price value start from 125
                  {
                   if(speed1>1   ){    // ex if distance =150m then distance/100=1  and must be put 50 in distance not put 0
                                            value_start=value_start_old+(chot1*(distance_price/100)) ;
                                            Price_cont =0;
                                  }
                    else if( Price_cont>=3500){
                                                 price_cont=0;
                                                 value_start +=chot1;
                                                 value_start_old=value_start;//update value
                                              }
                  }
 else if(Price_change==1) // Price value start from 200
                         {
                          if(speed1>1 ) // ex if distance =150m then distance/100=1  and must be put 50 in distance not put 0
                                                 {
                                                   value_start =value_start_old+ (chot2*(distance_price /100));
                                                   Price_cont=0;
                                                 }
                          else if(Price_cont>=3500){
                                                     price_cont=0;
                                                     value_start +=chot2;
                                                     value_start_old=value_start;//update value
                                                   }
                         }
 if( value_start>=999999)
                         {
                          value_start=999999;
                          led_full_price=1;
                          price_enable=1;
                         }
 Price_array(value_start);

 check_price=0;

}