1.87% is the change from 643 to 655
Calculation steps:
[( 655 - 643 ) ÷ 643] x 100 = 1.87%
Formula
Percentage change = [(655 - 643) / 643] x 100
Subtract the new number by the original number
655 - 643 = 12
12 ÷ 643 = 0.01866251944012442
0.01866251944012442 x 100 = 1.87%