-10.7% is the change from 486 to 434
Calculation steps:
[( 434 - 486 ) ÷ 486] x 100 = -10.7%
Formula
Percentage change = [(434 - 486) / 486] x 100
Subtract the new number by the original number
434 - 486 = -52
-52 ÷ 486 = -0.10699588477366255
-0.10699588477366255 x 100 = -10.7%