249.74% is the change from 189 to 661
Calculation steps:
[( 661 - 189 ) ÷ 189] x 100 = 249.74%
Formula
Percentage change = [(661 - 189) / 189] x 100
Subtract the new number by the original number
661 - 189 = 472
472 ÷ 189 = 2.497354497354497
2.497354497354497 x 100 = 249.74%