-61.7% is the change from 47 to 18
Calculation steps:
[( 18 - 47 ) ÷ 47] x 100 = -61.7%
Formula
Percentage change = [(18 - 47) / 47] x 100
Subtract the new number by the original number
18 - 47 = -29
-29 ÷ 47 = -0.6170212765957447
-0.6170212765957447 x 100 = -61.7%