195.77% is the change from 142 to 420
Calculation steps:
[( 420 - 142 ) ÷ 142] x 100 = 195.77%
Formula
Percentage change = [(420 - 142) / 142] x 100
Subtract the new number by the original number
420 - 142 = 278
278 ÷ 142 = 1.9577464788732395
1.9577464788732395 x 100 = 195.77%