-17.28% is the change from 486 to 402
Calculation steps:
[( 402 - 486 ) ÷ 486] x 100 = -17.28%
Formula
Percentage change = [(402 - 486) / 486] x 100
Subtract the new number by the original number
402 - 486 = -84
-84 ÷ 486 = -0.1728395061728395
-0.1728395061728395 x 100 = -17.28%