-57.83% is the change from 517 to 218
Calculation steps:
[( 218 - 517 ) ÷ 517] x 100 = -57.83%
Formula
Percentage change = [(218 - 517) / 517] x 100
Subtract the new number by the original number
218 - 517 = -299
-299 ÷ 517 = -0.5783365570599613
-0.5783365570599613 x 100 = -57.83%