-30.94% is the change from 501 to 346
Calculation steps:
[( 346 - 501 ) ÷ 501] x 100 = -30.94%
Formula
Percentage change = [(346 - 501) / 501] x 100
Subtract the new number by the original number
346 - 501 = -155
-155 ÷ 501 = -0.3093812375249501
-0.3093812375249501 x 100 = -30.94%