I recently purchased Lesco Quin-way 75DF. I swear the guy at the store said .75oz per gallon of water, but the label is saying .275oz per gallon. .275oz is barely measurable in the measurement tube that is included. Is this correct? I need to use the product today, but the store isn't open until Monday. I've looked extensively for this answer. If someone could help me out I would GREATLY appreciate it!