34.99% is the change from 643 to 868
Calculation steps:
[( 868 - 643 ) ÷ 643] x 100 = 34.99%
Formula
Percentage change = [(868 - 643) / 643] x 100
Subtract the new number by the original number
868 - 643 = 225
225 ÷ 643 = 0.3499222395023328
0.3499222395023328 x 100 = 34.99%