Make ToggleButton and ProgressBar for displaying.

main.py

 from kivy.app import App
-from kivy.modules import inspector  # For inspection.
 from kivy.core.window import Window  # For inspection.
+from kivy.modules import inspector  # For inspection.
+from kivy.properties import NumericProperty
+from kivy.properties import BooleanProperty
+from kivy.uix.progressbar import ProgressBar
 
 
 class OrderApp(App):
+    total = NumericProperty(0)  # In cents.
+    amount_of_meals = NumericProperty(0)
+    H_food = BooleanProperty(False)
+    num_of_ppl = NumericProperty(0)
+
     def build(self):
         inspector.create_inspector(Window, self)  # For inspection (press control-e to toggle).
 
+    def Num_of_ppl(self, group):
+        if group:
+            print(f'{self.amount_of_meals / group}')
+        else:
+            print(f"No meals")
+
+    def food_sorting(self, Home_food):
+        self.H_food = Home_food
+
+    def amount_changed(self):
+        self.total = round(self.root.ids.food.value * 100)
+        print()
+
+
+
 
 if __name__ == '__main__':
     app = OrderApp()

order.kv

@@ -17,7 +17,27 @@ BoxLayout:
             size: self.texture_size
             padding: (sp(12), 0)
         Slider:
+            id: food
             range: (0, 100)
+            on_value: app.amount_changed()
     Label:
-        text: f'Your total is $0.00'
+        text:f'your total is ${app.total / 100:.2f}'
         font_size: sp(24)
+    ToggleButton:
+        text: 'Home food'
+        group: 'Food_sorting'
+        state: 'down'
+        on_release: app.food_sorting(True)
+
+    ToggleButton:
+        text: 'Fast food'
+        group: 'Food_sorting'
+        on_release: app.food_sorting(False)
+
+    ProgressBar:
+        max: 1000
+        value: 750
+
+
+
+