-31.33% is the change from 517 to 355
Calculation steps:
[( 355 - 517 ) ÷ 517] x 100 = -31.33%
Formula
Percentage change = [(355 - 517) / 517] x 100
Subtract the new number by the original number
355 - 517 = -162
-162 ÷ 517 = -0.31334622823984526
-0.31334622823984526 x 100 = -31.33%