-25.84% is the change from 89 to 66
Calculation steps:
[( 66 - 89 ) ÷ 89] x 100 = -25.84%
Formula
Percentage change = [(66 - 89) / 89] x 100
Subtract the new number by the original number
66 - 89 = -23
-23 ÷ 89 = -0.25842696629213485
-0.25842696629213485 x 100 = -25.84%