-98.47% is the change from 523 to 8
Calculation steps:
[( 8 - 523 ) ÷ 523] x 100 = -98.47%
Formula
Percentage change = [(8 - 523) / 523] x 100
Subtract the new number by the original number
8 - 523 = -515
-515 ÷ 523 = -0.9847036328871893
-0.9847036328871893 x 100 = -98.47%