-42% is the change from 838 to 486
Calculation steps:
[( 486 - 838 ) ÷ 838] x 100 = -42%
Formula
Percentage change = [(486 - 838) / 838] x 100
Subtract the new number by the original number
486 - 838 = -352
-352 ÷ 838 = -0.4200477326968974
-0.4200477326968974 x 100 = -42%