-1.85% is the change from 486 to 477
Calculation steps:
[( 477 - 486 ) ÷ 486] x 100 = -1.85%
Formula
Percentage change = [(477 - 486) / 486] x 100
Subtract the new number by the original number
477 - 486 = -9
-9 ÷ 486 = -0.018518518518518517
-0.018518518518518517 x 100 = -1.85%