303.03% is the change from 165 to 665
Calculation steps:
[( 665 - 165 ) ÷ 165] x 100 = 303.03%
Formula
Percentage change = [(665 - 165) / 165] x 100
Subtract the new number by the original number
665 - 165 = 500
500 ÷ 165 = 3.0303030303030303
3.0303030303030303 x 100 = 303.03%