278.66% is the change from 164 to 621
Calculation steps:
[( 621 - 164 ) ÷ 164] x 100 = 278.66%
Formula
Percentage change = [(621 - 164) / 164] x 100
Subtract the new number by the original number
621 - 164 = 457
457 ÷ 164 = 2.7865853658536586
2.7865853658536586 x 100 = 278.66%