-- AlterTable
ALTER TABLE `fast_billing_items` ADD COLUMN `extra_charges` DECIMAL(10, 2) NULL DEFAULT 0,
    ADD COLUMN `number_of_boxes` DECIMAL(12, 3) NULL,
    ADD COLUMN `number_of_pieces` DECIMAL(12, 3) NULL,
    ADD COLUMN `number_of_thaar` DECIMAL(12, 3) NULL,
    ADD COLUMN `rate_type` VARCHAR(20) NULL,
    MODIFY `quantity` DECIMAL(12, 3) NULL;