Change net_gain to Net_profit so it makes sense

app/star_citizen.py

@@ -257,13 +257,13 @@ async def calculate_trade_profies(commodity, scu=None):
             inline=True,
         )
 
-        net_gain = float(profits[max(profits, key=profits.get)]) - float(
+        net_profit = float(profits[max(profits, key=profits.get)]) - float(
             costs[min(costs, key=costs.get)]
         )
 
         embed.add_field(
-            name="**Net Gain**",
-            value="$%s" % "{:20,.2f}".format(net_gain).strip(),
+            name="**Net Profit**",
+            value="$%s" % "{:20,.2f}".format(net_profit).strip(),
             inline=True,
         )