80.44% is the change from 271 to 489
Calculation steps:
[( 489 - 271 ) ÷ 271] x 100 = 80.44%
Formula
Percentage change = [(489 - 271) / 271] x 100
Subtract the new number by the original number
489 - 271 = 218
218 ÷ 271 = 0.8044280442804428
0.8044280442804428 x 100 = 80.44%