-74.71% is the change from 518 to 131
Calculation steps:
[( 131 - 518 ) ÷ 518] x 100 = -74.71%
Formula
Percentage change = [(131 - 518) / 518] x 100
Subtract the new number by the original number
131 - 518 = -387
-387 ÷ 518 = -0.747104247104247
-0.747104247104247 x 100 = -74.71%