-29.85% is the change from 67 to 47
Calculation steps:
[( 47 - 67 ) ÷ 67] x 100 = -29.85%
Formula
Percentage change = [(47 - 67) / 67] x 100
Subtract the new number by the original number
47 - 67 = -20
-20 ÷ 67 = -0.29850746268656714
-0.29850746268656714 x 100 = -29.85%