-84.59% is the change from 305 to 47
Calculation steps:
[( 47 - 305 ) ÷ 305] x 100 = -84.59%
Formula
Percentage change = [(47 - 305) / 305] x 100
Subtract the new number by the original number
47 - 305 = -258
-258 ÷ 305 = -0.8459016393442623
-0.8459016393442623 x 100 = -84.59%