49.3% is the change from 142 to 212
Calculation steps:
[( 212 - 142 ) ÷ 142] x 100 = 49.3%
Formula
Percentage change = [(212 - 142) / 142] x 100
Subtract the new number by the original number
212 - 142 = 70
70 ÷ 142 = 0.49295774647887325
0.49295774647887325 x 100 = 49.3%