106.75% is the change from 311 to 643
Calculation steps:
[( 643 - 311 ) ÷ 311] x 100 = 106.75%
Formula
Percentage change = [(643 - 311) / 311] x 100
Subtract the new number by the original number
643 - 311 = 332
332 ÷ 311 = 1.067524115755627
1.067524115755627 x 100 = 106.75%