-78.98% is the change from 490 to 103
Calculation steps:
[( 103 - 490 ) ÷ 490] x 100 = -78.98%
Formula
Percentage change = [(103 - 490) / 490] x 100
Subtract the new number by the original number
103 - 490 = -387
-387 ÷ 490 = -0.789795918367347
-0.789795918367347 x 100 = -78.98%