The total amount in the cashbox increased by $25 per ticket.

The total amount in the cashbox can be stated as “The total amount in the cashbox increases by X per ticket,” where X is the price of each ticket sold.

To clarify, when you sell each ticket, the total amount in the cashbox goes up by the value of that ticket. For example, if each ticket costs $10 and you sell 5 tickets, then the total amount in the cashbox increases by $10 for each ticket, resulting in a total increase of $50. If you provide the specific ticket price, I can give a more precise answer.