-29.84% is the change from 620 to 435
Calculation steps:
[( 435 - 620 ) ÷ 620] x 100 = -29.84%
Formula
Percentage change = [(435 - 620) / 620] x 100
Subtract the new number by the original number
435 - 620 = -185
-185 ÷ 620 = -0.29838709677419356
-0.29838709677419356 x 100 = -29.84%