-32.04% is the change from 515 to 350
Calculation steps:
[( 350 - 515 ) ÷ 515] x 100 = -32.04%
Formula
Percentage change = [(350 - 515) / 515] x 100
Subtract the new number by the original number
350 - 515 = -165
-165 ÷ 515 = -0.32038834951456313
-0.32038834951456313 x 100 = -32.04%