-60.61% is the change from 66 to 26
Calculation steps:
[( 26 - 66 ) ÷ 66] x 100 = -60.61%
Formula
Percentage change = [(26 - 66) / 66] x 100
Subtract the new number by the original number
26 - 66 = -40
-40 ÷ 66 = -0.6060606060606061
-0.6060606060606061 x 100 = -60.61%