-90.55% is the change from 307 to 29
Calculation steps:
[( 29 - 307 ) ÷ 307] x 100 = -90.55%
Formula
Percentage change = [(29 - 307) / 307] x 100
Subtract the new number by the original number
29 - 307 = -278
-278 ÷ 307 = -0.9055374592833876
-0.9055374592833876 x 100 = -90.55%