-45.37% is the change from 939 to 513
Calculation steps:
[( 513 - 939 ) ÷ 939] x 100 = -45.37%
Formula
Percentage change = [(513 - 939) / 939] x 100
Subtract the new number by the original number
513 - 939 = -426
-426 ÷ 939 = -0.4536741214057508
-0.4536741214057508 x 100 = -45.37%