-57.46% is the change from 938 to 399
Calculation steps:
[( 399 - 938 ) ÷ 938] x 100 = -57.46%
Formula
Percentage change = [(399 - 938) / 938] x 100
Subtract the new number by the original number
399 - 938 = -539
-539 ÷ 938 = -0.5746268656716418
-0.5746268656716418 x 100 = -57.46%