-33.43% is the change from 661 to 440
Calculation steps:
[( 440 - 661 ) ÷ 661] x 100 = -33.43%
Formula
Percentage change = [(440 - 661) / 661] x 100
Subtract the new number by the original number
440 - 661 = -221
-221 ÷ 661 = -0.33434190620272314
-0.33434190620272314 x 100 = -33.43%