-1.22% is the change from 492 to 486
Calculation steps:
[( 486 - 492 ) ÷ 492] x 100 = -1.22%
Formula
Percentage change = [(486 - 492) / 492] x 100
Subtract the new number by the original number
486 - 492 = -6
-6 ÷ 492 = -0.012195121951219513
-0.012195121951219513 x 100 = -1.22%