Person 1 worked 80 hours a month for free for one year and then worked one more year with a payment of 1000 USD a month. He didn't put any personal money into the company.

Person 2 worked 80 hours a month for two years with a payment of 1000 USD per month. He didn't put any personal money into the company.

Person 3 worked 80 hours a month for ten months with a payment of 1000 USD per month. He didn't put any personal money into the company.

Person 4 worked 100 hours a month for free for two years, and then for an additional ten months with a payment of 1000 USD a month. Person 4 also invested 70,000 USD from his personal money in the company.

Based on the information above, write what should be the stake deviation in percentages between all four persons if they would open a company together and explain why. Please repeat the request first, then give your response.
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