138.75% is the change from 271 to 647
Calculation steps:
[( 647 - 271 ) ÷ 271] x 100 = 138.75%
Formula
Percentage change = [(647 - 271) / 271] x 100
Subtract the new number by the original number
647 - 271 = 376
376 ÷ 271 = 1.3874538745387455
1.3874538745387455 x 100 = 138.75%