-47.03% is the change from 421 to 223
Calculation steps:
[( 223 - 421 ) ÷ 421] x 100 = -47.03%
Formula
Percentage change = [(223 - 421) / 421] x 100
Subtract the new number by the original number
223 - 421 = -198
-198 ÷ 421 = -0.47030878859857483
-0.47030878859857483 x 100 = -47.03%