-6.06% is the change from 66 to 62
Calculation steps:
[( 62 - 66 ) ÷ 66] x 100 = -6.06%
Formula
Percentage change = [(62 - 66) / 66] x 100
Subtract the new number by the original number
62 - 66 = -4
-4 ÷ 66 = -0.06060606060606061
-0.06060606060606061 x 100 = -6.06%