-29.72% is the change from 434 to 305
Calculation steps:
[( 305 - 434 ) ÷ 434] x 100 = -29.72%
Formula
Percentage change = [(305 - 434) / 434] x 100
Subtract the new number by the original number
305 - 434 = -129
-129 ÷ 434 = -0.29723502304147464
-0.29723502304147464 x 100 = -29.72%