249.21% is the change from 189 to 660
Calculation steps:
[( 660 - 189 ) ÷ 189] x 100 = 249.21%
Formula
Percentage change = [(660 - 189) / 189] x 100
Subtract the new number by the original number
660 - 189 = 471
471 ÷ 189 = 2.492063492063492
2.492063492063492 x 100 = 249.21%