105.77% is the change from 312 to 642
Calculation steps:
[( 642 - 312 ) ÷ 312] x 100 = 105.77%
Formula
Percentage change = [(642 - 312) / 312] x 100
Subtract the new number by the original number
642 - 312 = 330
330 ÷ 312 = 1.0576923076923077
1.0576923076923077 x 100 = 105.77%