-4.48% is the change from 67 to 64
Calculation steps:
[( 64 - 67 ) ÷ 67] x 100 = -4.48%
Formula
Percentage change = [(64 - 67) / 67] x 100
Subtract the new number by the original number
64 - 67 = -3
-3 ÷ 67 = -0.04477611940298507
-0.04477611940298507 x 100 = -4.48%