-75.06% is the change from 421 to 105
Calculation steps:
[( 105 - 421 ) ÷ 421] x 100 = -75.06%
Formula
Percentage change = [(105 - 421) / 421] x 100
Subtract the new number by the original number
105 - 421 = -316
-316 ÷ 421 = -0.7505938242280285
-0.7505938242280285 x 100 = -75.06%