74.45% is the change from 274 to 478
Calculation steps:
[( 478 - 274 ) ÷ 274] x 100 = 74.45%
Formula
Percentage change = [(478 - 274) / 274] x 100
Subtract the new number by the original number
478 - 274 = 204
204 ÷ 274 = 0.7445255474452555
0.7445255474452555 x 100 = 74.45%