-80.31% is the change from 518 to 102
Calculation steps:
[( 102 - 518 ) ÷ 518] x 100 = -80.31%
Formula
Percentage change = [(102 - 518) / 518] x 100
Subtract the new number by the original number
102 - 518 = -416
-416 ÷ 518 = -0.803088803088803
-0.803088803088803 x 100 = -80.31%