-27.43% is the change from 678 to 492
Calculation steps:
[( 492 - 678 ) ÷ 678] x 100 = -27.43%
Formula
Percentage change = [(492 - 678) / 678] x 100
Subtract the new number by the original number
492 - 678 = -186
-186 ÷ 678 = -0.2743362831858407
-0.2743362831858407 x 100 = -27.43%