-35.73% is the change from 655 to 421
Calculation steps:
[( 421 - 655 ) ÷ 655] x 100 = -35.73%
Formula
Percentage change = [(421 - 655) / 655] x 100
Subtract the new number by the original number
421 - 655 = -234
-234 ÷ 655 = -0.35725190839694654
-0.35725190839694654 x 100 = -35.73%