-41% is the change from 839 to 495
Calculation steps:
[( 495 - 839 ) ÷ 839] x 100 = -41%
Formula
Percentage change = [(495 - 839) / 839] x 100
Subtract the new number by the original number
495 - 839 = -344
-344 ÷ 839 = -0.4100119189511323
-0.4100119189511323 x 100 = -41%