-0.21% is the change from 487 to 486
Calculation steps:
[( 486 - 487 ) ÷ 487] x 100 = -0.21%
Formula
Percentage change = [(486 - 487) / 487] x 100
Subtract the new number by the original number
486 - 487 = -1
-1 ÷ 487 = -0.002053388090349076
-0.002053388090349076 x 100 = -0.21%