-44.09% is the change from 930 to 520
Calculation steps:
[( 520 - 930 ) ÷ 930] x 100 = -44.09%
Formula
Percentage change = [(520 - 930) / 930] x 100
Subtract the new number by the original number
520 - 930 = -410
-410 ÷ 930 = -0.44086021505376344
-0.44086021505376344 x 100 = -44.09%