-39.15% is the change from 843 to 513
Calculation steps:
[( 513 - 843 ) ÷ 843] x 100 = -39.15%
Formula
Percentage change = [(513 - 843) / 843] x 100
Subtract the new number by the original number
513 - 843 = -330
-330 ÷ 843 = -0.3914590747330961
-0.3914590747330961 x 100 = -39.15%