100.6% is the change from 334 to 670
Calculation steps:
[( 670 - 334 ) ÷ 334] x 100 = 100.6%
Formula
Percentage change = [(670 - 334) / 334] x 100
Subtract the new number by the original number
670 - 334 = 336
336 ÷ 334 = 1.0059880239520957
1.0059880239520957 x 100 = 100.6%