Update app.py

app.py

@@ -2,7 +2,7 @@ import streamlit as st
 
 st.set_page_config(page_title="🧱 Block Quantity Calculator", layout="centered")
 
-st.title("🧱 Block Quantity Calculator")
+st.title("🧱 Block Quantity Calculator with Formula Explanation")
 
 unit = st.selectbox("Choose Unit", ["m", "cm"])
 
@@ -27,9 +27,9 @@ cement = st.number_input("Cement Ratio", value=1.0)
 sand = st.number_input("Sand Ratio", value=2.5)
 ratio_sum = cement + sand
 
-# Other Inputs
+# Additional Inputs
 st.subheader("Additional Inputs")
-deduct_area = st.number_input("Deducted Area (e.g., windows/doors) in m²", value=0.0)
+deduct_area = st.number_input("Deducted Area (e.g., doors/windows) in m²", value=0.0)
 block_price = st.number_input("Block Price (optional)", value=0.0)
 
 if st.button("Calculate"):
@@ -44,34 +44,37 @@ if st.button("Calculate"):
 
     st.markdown("## 📘 Calculation Breakdown")
 
-    st.markdown(f"""
-    ### 🧱 Wall Volume
-    **Formula:** `Length × Height × Thickness - Deducted Area`  
-    **=** {L:.2f} × {H:.2f} × {T:.2f} - {deduct_area:.2f}  
-    **= {wall_vol:.2f} m³**
-
-    ### 🧱 Block Volume
-    **Formula:** `Length × Height × Width`  
-    **=** {BL:.2f} × {BH:.2f} × {BW:.2f}  
-    **= {block_vol:.4f} m³**
-
-    ### 🔢 Number of Blocks
-    **Formula:** `Wall Volume ÷ Block Volume`  
-    **=** {wall_vol:.2f} ÷ {block_vol:.4f}  
-    **= {num_blocks:.0f} blocks**
-
-    ### 🧪 Dry Mortar Volume
-    **Formula:** `Wall Volume × 0.21`  
-    **=** {wall_vol:.2f} × 0.21  
-    **= {dry_mortar:.2f} m³**
-
-    ### 🧱 Cement & Sand Volume
-    **Cement Volume:**  
-    **=** {dry_mortar:.2f} × ({cement} / {ratio_sum}) = {cement_vol:.2f} m³  
-    **Sand Volume:**  
-    **=** {dry_mortar:.2f} × ({sand} / {ratio_sum}) = {sand_vol:.2f} m³
-
-    ### 🧱 Cement Bags
-    **Formula:** `Cement Volume ÷ 0.0347`  
-    **=** {cement_vol:.2f} ÷ 0.0347  
-    **= {cement_bags:.0f} bags_**
+    st.markdown(f"""### 🧱 Wall Volume
+**Formula:** `Length × Height × Thickness - Deducted Area`  
+**=** {L:.2f} × {H:.2f} × {T:.2f} - {deduct_area:.2f}  
+**= {wall_vol:.2f} m³**
+
+### 🧱 Block Volume
+**Formula:** `Length × Height × Width`  
+**=** {BL:.2f} × {BH:.2f} × {BW:.2f}  
+**= {block_vol:.4f} m³**
+
+### 🔢 Number of Blocks
+**Formula:** `Wall Volume ÷ Block Volume`  
+**=** {wall_vol:.2f} ÷ {block_vol:.4f}  
+**= {num_blocks:.0f} blocks**
+
+### 🧪 Dry Mortar Volume
+**Formula:** `Wall Volume × 0.21`  
+**=** {wall_vol:.2f} × 0.21  
+**= {dry_mortar:.2f} m³**
+
+### 🧱 Cement & Sand Volume
+**Cement Volume:** {dry_mortar:.2f} × ({cement} / {ratio_sum}) = {cement_vol:.2f} m³  
+**Sand Volume:** {dry_mortar:.2f} × ({sand} / {ratio_sum}) = {sand_vol:.2f} m³
+
+### 🧱 Cement Bags
+**Formula:** `Cement Volume ÷ 0.0347`  
+**=** {cement_vol:.2f} ÷ 0.0347  
+**= {cement_bags:.0f} bags**
+
+### 💰 Total Cost (Optional)
+**Formula:** `Number of Blocks × Block Price`  
+**=** {num_blocks:.0f} × {block_price:.2f}  
+**= ${cost:.2f}**
+""")