-90.91% is the change from 517 to 47
Calculation steps:
[( 47 - 517 ) ÷ 517] x 100 = -90.91%
Formula
Percentage change = [(47 - 517) / 517] x 100
Subtract the new number by the original number
47 - 517 = -470
-470 ÷ 517 = -0.9090909090909091
-0.9090909090909091 x 100 = -90.91%