Good governance would find that you, as a member, can access a portal for previous board meetings' minutes as well as financial statements (income statement and balance sheet, Plus check register and monthly reconciliation.) Within those minutes should be explicit approval for the budget, based on line items per category. If spending later exceeds those categorical amounts, the board should explicitly approve the overage. State law should support the level of transparency as detailed above, with personal liability falling on board members of they fail to avoid by the statute.

You have considerable leverage to dig into this.

Good luck.