-30.78% is the change from 666 to 461
Calculation steps:
[( 461 - 666 ) ÷ 666] x 100 = -30.78%
Formula
Percentage change = [(461 - 666) / 666] x 100
Subtract the new number by the original number
461 - 666 = -205
-205 ÷ 666 = -0.3078078078078078
-0.3078078078078078 x 100 = -30.78%