-78.57% is the change from 490 to 105
Calculation steps:
[( 105 - 490 ) ÷ 490] x 100 = -78.57%
Formula
Percentage change = [(105 - 490) / 490] x 100
Subtract the new number by the original number
105 - 490 = -385
-385 ÷ 490 = -0.7857142857142857
-0.7857142857142857 x 100 = -78.57%