-79.27% is the change from 492 to 102
Calculation steps:
[( 102 - 492 ) ÷ 492] x 100 = -79.27%
Formula
Percentage change = [(102 - 492) / 492] x 100
Subtract the new number by the original number
102 - 492 = -390
-390 ÷ 492 = -0.7926829268292683
-0.7926829268292683 x 100 = -79.27%