257.43% is the change from 249 to 890
Calculation steps:
[( 890 - 249 ) ÷ 249] x 100 = 257.43%
Formula
Percentage change = [(890 - 249) / 249] x 100
Subtract the new number by the original number
890 - 249 = 641
641 ÷ 249 = 2.57429718875502
2.57429718875502 x 100 = 257.43%