63.21% is the change from 212 to 346
Calculation steps:
[( 346 - 212 ) ÷ 212] x 100 = 63.21%
Formula
Percentage change = [(346 - 212) / 212] x 100
Subtract the new number by the original number
346 - 212 = 134
134 ÷ 212 = 0.6320754716981132
0.6320754716981132 x 100 = 63.21%