can someone please explain this! how do you get that total interest amount?

Results Summary Starting amount $2,000.00 Years 2 years. Additional contributions $0.00 per year Rate of return 7% compounded annually $2,000.00 Total amount you will have contributed Total interest $289.80 Total at end of investment $2,289.80 Savings Balance Interest Year Start 1 2 Additions $2,000.00 $0.00 $0.00 Balance $2,000.00 $2,140.00 $2,289.80 $140.00 $149.80