135.09% is the change from 399 to 938
Calculation steps:
[( 938 - 399 ) ÷ 399] x 100 = 135.09%
Formula
Percentage change = [(938 - 399) / 399] x 100
Subtract the new number by the original number
938 - 399 = 539
539 ÷ 399 = 1.3508771929824561
1.3508771929824561 x 100 = 135.09%