-29.5% is the change from 661 to 466
Calculation steps:
[( 466 - 661 ) ÷ 661] x 100 = -29.5%
Formula
Percentage change = [(466 - 661) / 661] x 100
Subtract the new number by the original number
466 - 661 = -195
-195 ÷ 661 = -0.2950075642965204
-0.2950075642965204 x 100 = -29.5%