193.71% is the change from 143 to 420
Calculation steps:
[( 420 - 143 ) ÷ 143] x 100 = 193.71%
Formula
Percentage change = [(420 - 143) / 143] x 100
Subtract the new number by the original number
420 - 143 = 277
277 ÷ 143 = 1.937062937062937
1.937062937062937 x 100 = 193.71%