-37.55% is the change from 514 to 321
Calculation steps:
[( 321 - 514 ) ÷ 514] x 100 = -37.55%
Formula
Percentage change = [(321 - 514) / 514] x 100
Subtract the new number by the original number
321 - 514 = -193
-193 ÷ 514 = -0.3754863813229572
-0.3754863813229572 x 100 = -37.55%