-58.57% is the change from 939 to 389
Calculation steps:
[( 389 - 939 ) ÷ 939] x 100 = -58.57%
Formula
Percentage change = [(389 - 939) / 939] x 100
Subtract the new number by the original number
389 - 939 = -550
-550 ÷ 939 = -0.5857294994675186
-0.5857294994675186 x 100 = -58.57%