68.25% is the change from 126 to 212
Calculation steps:
[( 212 - 126 ) ÷ 126] x 100 = 68.25%
Formula
Percentage change = [(212 - 126) / 126] x 100
Subtract the new number by the original number
212 - 126 = 86
86 ÷ 126 = 0.6825396825396826
0.6825396825396826 x 100 = 68.25%