288.1% is the change from 126 to 489
Calculation steps:
[( 489 - 126 ) ÷ 126] x 100 = 288.1%
Formula
Percentage change = [(489 - 126) / 126] x 100
Subtract the new number by the original number
489 - 126 = 363
363 ÷ 126 = 2.880952380952381
2.880952380952381 x 100 = 288.1%