63.5% is the change from 274 to 448
Calculation steps:
[( 448 - 274 ) ÷ 274] x 100 = 63.5%
Formula
Percentage change = [(448 - 274) / 274] x 100
Subtract the new number by the original number
448 - 274 = 174
174 ÷ 274 = 0.635036496350365
0.635036496350365 x 100 = 63.5%