67.7% is the change from 291 to 488
Calculation steps:
[( 488 - 291 ) ÷ 291] x 100 = 67.7%
Formula
Percentage change = [(488 - 291) / 291] x 100
Subtract the new number by the original number
488 - 291 = 197
197 ÷ 291 = 0.6769759450171822
0.6769759450171822 x 100 = 67.7%