-38.61% is the change from 847 to 520
Calculation steps:
[( 520 - 847 ) ÷ 847] x 100 = -38.61%
Formula
Percentage change = [(520 - 847) / 847] x 100
Subtract the new number by the original number
520 - 847 = -327
-327 ÷ 847 = -0.3860684769775679
-0.3860684769775679 x 100 = -38.61%