-56.4% is the change from 516 to 225
Calculation steps:
[( 225 - 516 ) ÷ 516] x 100 = -56.4%
Formula
Percentage change = [(225 - 516) / 516] x 100
Subtract the new number by the original number
225 - 516 = -291
-291 ÷ 516 = -0.563953488372093
-0.563953488372093 x 100 = -56.4%