[BUG] Incorrect P&L calculation in TON Trading Bot report

[labtgbot]

🐛 Bug Description

The TON Trading Bot report shows incorrect P&L calculations when closing positions in simulation mode.

Current (Wrong) Behavior:

• Position 28: Shows 10 TON → 16.24 USDT with +13,310% profit
• Position 29: Shows 50 TON → 16.28 USDT with -73.53% loss
• Total reported: +$1.247 net profit

Expected (Correct) Behavior:

Based on entry/exit prices:

• Position 28 (Entry $1.240, Exit $1.249):
  10 TON × $1.240 = $12.40 → 10 TON × $1.249 = $12.49
  Actual P&L: ~+$0.09 (not +$16.24!)

• Position 29 (Entry $1.252, Exit $1.251):
  50 TON × $1.252 = $62.60 → 50 TON × $1.251 = $62.55
  Actual P&L: ~-$0.05 (not -$45.22!)

Root Cause:

The ton_trading_record_trade tool (or report generator) is using incorrect formula for P&L calculation. It appears to:

1. Use wrong amount_in/amount_out values in the report
2. OR calculate PnL percentage based on incorrect base amounts

Affected Components:

• TON Trading Bot plugin (likely in plugins/ton-trading or similar)
• The recordTrade / calculatePnL function
• Report generation in HEARTBEAT.md workflow

Steps to Reproduce:

1. Open a simulated trade (e.g., 10 TON/USDT at $1.240)
2. Close the trade at a slightly higher price ($1.249)
3. Check the generated report — shows incorrect USDT amounts and P&L%

Expected Fix:

P&L should be calculated as:

pnl_usd = (amount_in × exit_price_usd) - (amount_in × entry_price_usd)
pnl_pct = ((exit_price - entry_price) / entry_price) × 100

Report should show:

• Correct USDT amounts based on actual TON amount × price
• Accurate P&L percentages

Priority: High 🔴

This breaks trading performance tracking and could lead to wrong decisions in YOLO mode.

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Date: 2026-04-09
Reporter: Tony ID (@labtgbot)

[labtgbot]

🔧 Suggested Fix

Correct P&L Formula:

// Entry data from journal
const entryPrice = 1.240; // TON/USD
const exitPrice = 1.249;
const amountIn = 10; // TON amount

// Correct calculations
const valueInUSD = amountIn * entryPrice;      // $12.40
const valueOutUSD = amountIn * exitPrice;      // $12.49
const pnlUSD = valueOutUSD - valueInUSD;       // +$0.09
const pnlPercent = ((exitPrice - entryPrice) / entryPrice) * 100; // +0.73%

What to change:

Find recordTrade / calculatePnL function in the trading plugin and replace incorrect formula with the one above. Ensure report uses amount_in for both entry and exit value calculations.

Example output after fix:

✅ Position #28 CLOSED - PROFIT
- Entry: $1.240 | Exit: $1.249
- Amount: 10 TON → $12.49 USDT
- PnL: +$0.09 (+0.73%)