-45.51% is the change from 624 to 340
Calculation steps:
[( 340 - 624 ) ÷ 624] x 100 = -45.51%
Formula
Percentage change = [(340 - 624) / 624] x 100
Subtract the new number by the original number
340 - 624 = -284
-284 ÷ 624 = -0.4551282051282051
-0.4551282051282051 x 100 = -45.51%