-27.04% is the change from 906 to 661
Calculation steps:
[( 661 - 906 ) ÷ 906] x 100 = -27.04%
Formula
Percentage change = [(661 - 906) / 906] x 100
Subtract the new number by the original number
661 - 906 = -245
-245 ÷ 906 = -0.2704194260485651
-0.2704194260485651 x 100 = -27.04%
Example