-58.68% is the change from 939 to 388
Calculation steps:
[( 388 - 939 ) ÷ 939] x 100 = -58.68%
Formula
Percentage change = [(388 - 939) / 939] x 100
Subtract the new number by the original number
388 - 939 = -551
-551 ÷ 939 = -0.5867944621938233
-0.5867944621938233 x 100 = -58.68%