79.7% is the change from 271 to 487
Calculation steps:
[( 487 - 271 ) ÷ 271] x 100 = 79.7%
Formula
Percentage change = [(487 - 271) / 271] x 100
Subtract the new number by the original number
487 - 271 = 216
216 ÷ 271 = 0.7970479704797048
0.7970479704797048 x 100 = 79.7%