diff --git a/crypto.py b/crypto.py
index 741eab6..54ed8ad 100644
--- a/crypto.py
+++ b/crypto.py
@@ -2,18 +2,21 @@ import random
 import matplotlib.pyplot as plt
 
 # Game parameters
-# Start price of coin
 coin_price = 100.0
 price_sensitivity = 0.5
 volatility = 0.3
 price_history = [coin_price]
+trade_history = [0]             # User's buy/sell behavior per turn
+cumulative_trades = [0]         # Net amount of coins user holds over time
 
 def save_graph():
     plt.clf()
-    plt.plot(price_history, label="Coin Price")
-    plt.title("Coin Price Over Time")
+    plt.plot(price_history, label="Coin Price", color='blue')
+    plt.plot(trade_history, label="Trade Behavior", color='orange')
+    plt.plot(cumulative_trades, label="Net Coins Held", color='green')
+    plt.title("Coin Price, Trade Behavior & Net Holdings Over Time")
     plt.xlabel("Turn")
-    plt.ylabel("Price")
+    plt.ylabel("Value")
     plt.legend()
     plt.grid(True)
     plt.savefig("coin_price.png")
@@ -36,7 +39,9 @@ while True:
         print("⚠️ Please enter a valid number like +10 or -5.")
         continue
 
-    user_intput = 10
+    trade_history.append(trade_amount)
+    new_total = cumulative_trades[-1] + trade_amount
+    cumulative_trades.append(new_total)
 
     buys = trade_amount if trade_amount > 0 else 0
     sells = -trade_amount if trade_amount < 0 else 0