308.59% is the change from 163 to 666
Calculation steps:
[( 666 - 163 ) ÷ 163] x 100 = 308.59%
Formula
Percentage change = [(666 - 163) / 163] x 100
Subtract the new number by the original number
666 - 163 = 503
503 ÷ 163 = 3.085889570552147
3.085889570552147 x 100 = 308.59%