538% is the change from 50 to 319
Calculation steps:
[( 319 - 50 ) ÷ 50] x 100 = 538%
Formula
Percentage change = [(319 - 50) / 50] x 100
Subtract the new number by the original number
319 - 50 = 269
269 ÷ 50 = 5.38
5.38 x 100 = 538%
Example