1.25% is the change from 642 to 650
Calculation steps:
[( 650 - 642 ) ÷ 642] x 100 = 1.25%
Formula
Percentage change = [(650 - 642) / 642] x 100
Subtract the new number by the original number
650 - 642 = 8
8 ÷ 642 = 0.012461059190031152
0.012461059190031152 x 100 = 1.25%