35.46% is the change from 643 to 871
Calculation steps:
[( 871 - 643 ) ÷ 643] x 100 = 35.46%
Formula
Percentage change = [(871 - 643) / 643] x 100
Subtract the new number by the original number
871 - 643 = 228
228 ÷ 643 = 0.3545878693623639
0.3545878693623639 x 100 = 35.46%