-42.04% is the change from 930 to 539
Calculation steps:
[( 539 - 930 ) ÷ 930] x 100 = -42.04%
Formula
Percentage change = [(539 - 930) / 930] x 100
Subtract the new number by the original number
539 - 930 = -391
-391 ÷ 930 = -0.4204301075268817
-0.4204301075268817 x 100 = -42.04%