               const value = context.raw;
                                    const total = context.dataset.data.reduce((sum, val) => sum + val, 0);
                                    const percentage = total > 0 ? ((value / total) * 100).toFixed(1) : 0;
                                    return `${context.label}: ${formatCurrency(value)} (${percentage}%)`;
                                }
                            }
                        }
                    }
                }
            });
    