-16.42% is the change from 67 to 56
Calculation steps:
[( 56 - 67 ) ÷ 67] x 100 = -16.42%
Formula
Percentage change = [(56 - 67) / 67] x 100
Subtract the new number by the original number
56 - 67 = -11
-11 ÷ 67 = -0.16417910447761194
-0.16417910447761194 x 100 = -16.42%