242.8% is the change from 257 to 881
Calculation steps:
[( 881 - 257 ) ÷ 257] x 100 = 242.8%
Formula
Percentage change = [(881 - 257) / 257] x 100
Subtract the new number by the original number
881 - 257 = 624
624 ÷ 257 = 2.4280155642023344
2.4280155642023344 x 100 = 242.8%