-64.09% is the change from 518 to 186
Calculation steps:
[( 186 - 518 ) ÷ 518] x 100 = -64.09%
Formula
Percentage change = [(186 - 518) / 518] x 100
Subtract the new number by the original number
186 - 518 = -332
-332 ÷ 518 = -0.640926640926641
-0.640926640926641 x 100 = -64.09%