-98.02% is the change from 506 to 10
Calculation steps:
[( 10 - 506 ) ÷ 506] x 100 = -98.02%
Formula
Percentage change = [(10 - 506) / 506] x 100
Subtract the new number by the original number
10 - 506 = -496
-496 ÷ 506 = -0.9802371541501976
-0.9802371541501976 x 100 = -98.02%