#include <DHT.h>
#define DHTPIN 2
#define DHTTYPE DHT22
DHT dht(DHTPIN, DHTTYPE);
float startTemperature;
float currentTemperature;
float percentageChange;
void setup() {
  Serial.begin(9600);
  dht.begin(); 
  startTemperature_loop();
}

void startTemperature_loop(){
  startTemperature=dht.readTemperature();
  Serial.print("Start Temperature: ");
  Serial.print(startTemperature);
  Serial.println(" *C");
  delay(2000);
}

void currentTemperature_loop(){
  currentTemperature=dht.readTemperature();
  Serial.print("Current Temperature: ");
  Serial.print(currentTemperature);
  Serial.println(" *C");
  delay(2000);
}

void percentageChange_loop(){
  
  percentageChange=(currentTemperature-startTemperature)/startTemperature*100;
  Serial.print("Percentage Change: ");
  Serial.print(percentageChange);
  Serial.println("%");
  delay(2000);
}

void loop() {
currentTemperature_loop();
percentageChange_loop();

}