-62.12% is the change from 66 to 25
Calculation steps:
[( 25 - 66 ) ÷ 66] x 100 = -62.12%
Formula
Percentage change = [(25 - 66) / 66] x 100
Subtract the new number by the original number
25 - 66 = -41
-41 ÷ 66 = -0.6212121212121212
-0.6212121212121212 x 100 = -62.12%