The Friday File: 16% of persons want to be consulted before their partner makes a purchase of under $100, and 20% set it at $100-$199. It then steadily declines to 12% for purchases between $200-$299, 8% between $300-$399, and 2% from $400-$499. For purchases over $500 the percentage rises to 16%. 26% of couples have no need for their partner to check with them before making any purchase.