How to save previous product stock quantity in woocommerce?

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<?php
/*
Plugin Name: Custom Stock History
Description: Save previous product stock quantity in WooCommerce
Version: 1.0
*/

// Hook to save the previous stock quantity before it gets updated
add_action('woocommerce_before_product_object_save', 'save_previous_stock_quantity', 10, 2);
function save_previous_stock_quantity($product, $data_store) {
    $product_id = $product->get_id();
    $previous_quantity = get_post_meta($product_id, '_previous_stock_quantity', true);
    $current_quantity = $product->get_stock_quantity();

    // Save the previous stock quantity if it has changed
    if ($previous_quantity != $current_quantity) {
        update_post_meta($product_id, '_previous_stock_quantity', $previous_quantity);
    }
}