-34.04% is the change from 661 to 436
Calculation steps:
[( 436 - 661 ) ÷ 661] x 100 = -34.04%
Formula
Percentage change = [(436 - 661) / 661] x 100
Subtract the new number by the original number
436 - 661 = -225
-225 ÷ 661 = -0.340393343419062
-0.340393343419062 x 100 = -34.04%