103.21% is the change from 312 to 634
Calculation steps:
[( 634 - 312 ) ÷ 312] x 100 = 103.21%
Formula
Percentage change = [(634 - 312) / 312] x 100
Subtract the new number by the original number
634 - 312 = 322
322 ÷ 312 = 1.0320512820512822
1.0320512820512822 x 100 = 103.21%