-80% is the change from 235 to 47
Calculation steps:
[( 47 - 235 ) ÷ 235] x 100 = -80%
Formula
Percentage change = [(47 - 235) / 235] x 100
Subtract the new number by the original number
47 - 235 = -188
-188 ÷ 235 = -0.8
-0.8 x 100 = -80%
Example