Mr. Dawkins earn $550 a week until he receive a raise. after the raise, he earned $566.50 by what percent did Mr. Dawkins' salary increase?

Hello!

The formula for percentage increase is:

Percent Increase = { (New Value - Old Value) / Old Value * 100}

Substitute = { (566.60 - 550) / 550 * 100]

Solve:

566.60 - 550 = 16.6

16.6 / 550 = 0.0301818182

0.0301818182 * 100 = 3.0181818182

You may round that to 3.1%

So, Mr. Dawkins' salary increased by about 3.1%