-20.66% is the change from 518 to 411
Calculation steps:
[( 411 - 518 ) ÷ 518] x 100 = -20.66%
Formula
Percentage change = [(411 - 518) / 518] x 100
Subtract the new number by the original number
411 - 518 = -107
-107 ÷ 518 = -0.20656370656370657
-0.20656370656370657 x 100 = -20.66%