-80.12% is the change from 518 to 103
Calculation steps:
[( 103 - 518 ) ÷ 518] x 100 = -80.12%
Formula
Percentage change = [(103 - 518) / 518] x 100
Subtract the new number by the original number
103 - 518 = -415
-415 ÷ 518 = -0.8011583011583011
-0.8011583011583011 x 100 = -80.12%