-40.86% is the change from 514 to 304
Calculation steps:
[( 304 - 514 ) ÷ 514] x 100 = -40.86%
Formula
Percentage change = [(304 - 514) / 514] x 100
Subtract the new number by the original number
304 - 514 = -210
-210 ÷ 514 = -0.4085603112840467
-0.4085603112840467 x 100 = -40.86%