293.75% is the change from 128 to 504
Calculation steps:
[( 504 - 128 ) ÷ 128] x 100 = 293.75%
Formula
Percentage change = [(504 - 128) / 128] x 100
Subtract the new number by the original number
504 - 128 = 376
376 ÷ 128 = 2.9375
2.9375 x 100 = 293.75%