471.43% is the change from 49 to 280
Calculation steps:
[( 280 - 49 ) ÷ 49] x 100 = 471.43%
Formula
Percentage change = [(280 - 49) / 49] x 100
Subtract the new number by the original number
280 - 49 = 231
231 ÷ 49 = 4.714285714285714
4.714285714285714 x 100 = 471.43%