-56.56% is the change from 518 to 225
Calculation steps:
[( 225 - 518 ) ÷ 518] x 100 = -56.56%
Formula
Percentage change = [(225 - 518) / 518] x 100
Subtract the new number by the original number
225 - 518 = -293
-293 ÷ 518 = -0.5656370656370656
-0.5656370656370656 x 100 = -56.56%