-32.16% is the change from 510 to 346
Calculation steps:
[( 346 - 510 ) ÷ 510] x 100 = -32.16%
Formula
Percentage change = [(346 - 510) / 510] x 100
Subtract the new number by the original number
346 - 510 = -164
-164 ÷ 510 = -0.3215686274509804
-0.3215686274509804 x 100 = -32.16%