-96.64% is the change from 506 to 17
Calculation steps:
[( 17 - 506 ) ÷ 506] x 100 = -96.64%
Formula
Percentage change = [(17 - 506) / 506] x 100
Subtract the new number by the original number
17 - 506 = -489
-489 ÷ 506 = -0.9664031620553359
-0.9664031620553359 x 100 = -96.64%