309.09% is the change from 165 to 675
Calculation steps:
[( 675 - 165 ) ÷ 165] x 100 = 309.09%
Formula
Percentage change = [(675 - 165) / 165] x 100
Subtract the new number by the original number
675 - 165 = 510
510 ÷ 165 = 3.090909090909091
3.090909090909091 x 100 = 309.09%