-75.53% is the change from 421 to 103
Calculation steps:
[( 103 - 421 ) ÷ 421] x 100 = -75.53%
Formula
Percentage change = [(103 - 421) / 421] x 100
Subtract the new number by the original number
103 - 421 = -318
-318 ÷ 421 = -0.7553444180522565
-0.7553444180522565 x 100 = -75.53%