100% is the change from 137 to 274
Calculation steps:
[( 274 - 137 ) ÷ 137] x 100 = 100%
Formula
Percentage change = [(274 - 137) / 137] x 100
Subtract the new number by the original number
274 - 137 = 137
137 ÷ 137 = 1
1 x 100 = 100%
Example