203.64% is the change from 165 to 501
Calculation steps:
[( 501 - 165 ) ÷ 165] x 100 = 203.64%
Formula
Percentage change = [(501 - 165) / 165] x 100
Subtract the new number by the original number
501 - 165 = 336
336 ÷ 165 = 2.036363636363636
2.036363636363636 x 100 = 203.64%