-67.52% is the change from 939 to 305
Calculation steps:
[( 305 - 939 ) ÷ 939] x 100 = -67.52%
Formula
Percentage change = [(305 - 939) / 939] x 100
Subtract the new number by the original number
305 - 939 = -634
-634 ÷ 939 = -0.6751863684771033
-0.6751863684771033 x 100 = -67.52%