70.67% is the change from 491 to 838
Calculation steps:
[( 838 - 491 ) ÷ 491] x 100 = 70.67%
Formula
Percentage change = [(838 - 491) / 491] x 100
Subtract the new number by the original number
838 - 491 = 347
347 ÷ 491 = 0.7067209775967414
0.7067209775967414 x 100 = 70.67%