-43.13% is the change from 939 to 534
Calculation steps:
[( 534 - 939 ) ÷ 939] x 100 = -43.13%
Formula
Percentage change = [(534 - 939) / 939] x 100
Subtract the new number by the original number
534 - 939 = -405
-405 ÷ 939 = -0.43130990415335463
-0.43130990415335463 x 100 = -43.13%