139.9% is the change from 391 to 938
Calculation steps:
[( 938 - 391 ) ÷ 391] x 100 = 139.9%
Formula
Percentage change = [(938 - 391) / 391] x 100
Subtract the new number by the original number
938 - 391 = 547
547 ÷ 391 = 1.3989769820971867
1.3989769820971867 x 100 = 139.9%