-68.28% is the change from 517 to 164
Calculation steps:
[( 164 - 517 ) ÷ 517] x 100 = -68.28%
Formula
Percentage change = [(164 - 517) / 517] x 100
Subtract the new number by the original number
164 - 517 = -353
-353 ÷ 517 = -0.6827852998065764
-0.6827852998065764 x 100 = -68.28%