-10.64% is the change from 47 to 42
Calculation steps:
[( 42 - 47 ) ÷ 47] x 100 = -10.64%
Formula
Percentage change = [(42 - 47) / 47] x 100
Subtract the new number by the original number
42 - 47 = -5
-5 ÷ 47 = -0.10638297872340426
-0.10638297872340426 x 100 = -10.64%