-29.68% is the change from 620 to 436
Calculation steps:
[( 436 - 620 ) ÷ 620] x 100 = -29.68%
Formula
Percentage change = [(436 - 620) / 620] x 100
Subtract the new number by the original number
436 - 620 = -184
-184 ÷ 620 = -0.2967741935483871
-0.2967741935483871 x 100 = -29.68%