460% is the change from 50 to 280
Calculation steps:
[( 280 - 50 ) ÷ 50] x 100 = 460%
Formula
Percentage change = [(280 - 50) / 50] x 100
Subtract the new number by the original number
280 - 50 = 230
230 ÷ 50 = 4.6
4.6 x 100 = 460%
Example