56.87% is the change from 313 to 491
Calculation steps:
[( 491 - 313 ) ÷ 313] x 100 = 56.87%
Formula
Percentage change = [(491 - 313) / 313] x 100
Subtract the new number by the original number
491 - 313 = 178
178 ÷ 313 = 0.5686900958466453
0.5686900958466453 x 100 = 56.87%