1% is the change from 100 to 101
Calculation steps:
[( 101 - 100 ) ÷ 100] x 100 = 1%
Formula
Percentage change = [(101 - 100) / 100] x 100
Subtract the new number by the original number
101 - 100 = 1
1 ÷ 100 = 0.01
0.01 x 100 = 1%
Example