One of the perks of using Google Ads is that it's highly flexible. Campaigns and ad groups can be scaled based on the amount of money you're spending, and that spend can be changed at any time within Adwords. Of course, the more you spend, the higher your return can be.
We recommend that you spend at an amount that's comfortable for you. If you need or want to change it, you can reach out to your specialist who will make the necessary changes to your ad account.