-24.82% is the change from 407 to 306
Calculation steps:
[( 306 - 407 ) ÷ 407] x 100 = -24.82%
Formula
Percentage change = [(306 - 407) / 407] x 100
Subtract the new number by the original number
306 - 407 = -101
-101 ÷ 407 = -0.24815724815724816
-0.24815724815724816 x 100 = -24.82%