-79.03% is the change from 515 to 108
Calculation steps:
[( 108 - 515 ) ÷ 515] x 100 = -79.03%
Formula
Percentage change = [(108 - 515) / 515] x 100
Subtract the new number by the original number
108 - 515 = -407
-407 ÷ 515 = -0.7902912621359224
-0.7902912621359224 x 100 = -79.03%