-42.54% is the change from 905 to 520
Calculation steps:
[( 520 - 905 ) ÷ 905] x 100 = -42.54%
Formula
Percentage change = [(520 - 905) / 905] x 100
Subtract the new number by the original number
520 - 905 = -385
-385 ÷ 905 = -0.425414364640884
-0.425414364640884 x 100 = -42.54%