-96.84% is the change from 506 to 16
Calculation steps:
[( 16 - 506 ) ÷ 506] x 100 = -96.84%
Formula
Percentage change = [(16 - 506) / 506] x 100
Subtract the new number by the original number
16 - 506 = -490
-490 ÷ 506 = -0.9683794466403162
-0.9683794466403162 x 100 = -96.84%