276.36% is the change from 165 to 621
Calculation steps:
[( 621 - 165 ) ÷ 165] x 100 = 276.36%
Formula
Percentage change = [(621 - 165) / 165] x 100
Subtract the new number by the original number
621 - 165 = 456
456 ÷ 165 = 2.7636363636363637
2.7636363636363637 x 100 = 276.36%