-39.53% is the change from 516 to 312
Calculation steps:
[( 312 - 516 ) ÷ 516] x 100 = -39.53%
Formula
Percentage change = [(312 - 516) / 516] x 100
Subtract the new number by the original number
312 - 516 = -204
-204 ÷ 516 = -0.3953488372093023
-0.3953488372093023 x 100 = -39.53%