-40.66% is the change from 514 to 305
Calculation steps:
[( 305 - 514 ) ÷ 514] x 100 = -40.66%
Formula
Percentage change = [(305 - 514) / 514] x 100
Subtract the new number by the original number
305 - 514 = -209
-209 ÷ 514 = -0.4066147859922179
-0.4066147859922179 x 100 = -40.66%