428.57% is the change from 49 to 259
Calculation steps:
[( 259 - 49 ) ÷ 49] x 100 = 428.57%
Formula
Percentage change = [(259 - 49) / 49] x 100
Subtract the new number by the original number
259 - 49 = 210
210 ÷ 49 = 4.285714285714286
4.285714285714286 x 100 = 428.57%