194.41% is the change from 143 to 421
Calculation steps:
[( 421 - 143 ) ÷ 143] x 100 = 194.41%
Formula
Percentage change = [(421 - 143) / 143] x 100
Subtract the new number by the original number
421 - 143 = 278
278 ÷ 143 = 1.944055944055944
1.944055944055944 x 100 = 194.41%