42.92% is the change from 643 to 919
Calculation steps:
[( 919 - 643 ) ÷ 643] x 100 = 42.92%
Formula
Percentage change = [(919 - 643) / 643] x 100
Subtract the new number by the original number
919 - 643 = 276
276 ÷ 643 = 0.42923794712286156
0.42923794712286156 x 100 = 42.92%