-79.02% is the change from 491 to 103
Calculation steps:
[( 103 - 491 ) ÷ 491] x 100 = -79.02%
Formula
Percentage change = [(103 - 491) / 491] x 100
Subtract the new number by the original number
103 - 491 = -388
-388 ÷ 491 = -0.790224032586558
-0.790224032586558 x 100 = -79.02%