```\n// rest of code\n    _credit(liquidators[account][newOrderId], accumulationResult.liquidationFee);\n    _credit(referrers[account][newOrderId], accumulationResult.subtractiveFee);\n// rest of code\nfunction _credit(address account, UFixed6 amount) private {\n    if (amount.isZero()) return;\n\n    Local memory newLocal = _locals[account].read();\n    newLocal.credit(amount);\n    _locals[account].store(newLocal);\n}\n```\n