50% is the change from 558 to 837
Calculation steps:
[( 837 - 558 ) ÷ 558] x 100 = 50%
Formula
Percentage change = [(837 - 558) / 558] x 100
Subtract the new number by the original number
837 - 558 = 279
279 ÷ 558 = 0.5
0.5 x 100 = 50%
Example