-26.6% is the change from 906 to 665
Calculation steps:
[( 665 - 906 ) ÷ 906] x 100 = -26.6%
Formula
Percentage change = [(665 - 906) / 906] x 100
Subtract the new number by the original number
665 - 906 = -241
-241 ÷ 906 = -0.26600441501103755
-0.26600441501103755 x 100 = -26.6%