135.77% is the change from 274 to 646
Calculation steps:
[( 646 - 274 ) ÷ 274] x 100 = 135.77%
Formula
Percentage change = [(646 - 274) / 274] x 100
Subtract the new number by the original number
646 - 274 = 372
372 ÷ 274 = 1.3576642335766422
1.3576642335766422 x 100 = 135.77%