128% is the change from 250 to 570
Calculation steps:
[( 570 - 250 ) ÷ 250] x 100 = 128%
Formula
Percentage change = [(570 - 250) / 250] x 100
Subtract the new number by the original number
570 - 250 = 320
320 ÷ 250 = 1.28
1.28 x 100 = 128%
Example