1176% is the change from 50 to 638
Calculation steps:
[( 638 - 50 ) ÷ 50] x 100 = 1176%
Formula
Percentage change = [(638 - 50) / 50] x 100
Subtract the new number by the original number
638 - 50 = 588
588 ÷ 50 = 11.76
11.76 x 100 = 1176%
Example