67.53% is the change from 271 to 454
Calculation steps:
[( 454 - 271 ) ÷ 271] x 100 = 67.53%
Formula
Percentage change = [(454 - 271) / 271] x 100
Subtract the new number by the original number
454 - 271 = 183
183 ÷ 271 = 0.6752767527675276
0.6752767527675276 x 100 = 67.53%