-29.89% is the change from 435 to 305
Calculation steps:
[( 305 - 435 ) ÷ 435] x 100 = -29.89%
Formula
Percentage change = [(305 - 435) / 435] x 100
Subtract the new number by the original number
305 - 435 = -130
-130 ÷ 435 = -0.2988505747126437
-0.2988505747126437 x 100 = -29.89%