33.81% is the change from 491 to 657
Calculation steps:
[( 657 - 491 ) ÷ 491] x 100 = 33.81%
Formula
Percentage change = [(657 - 491) / 491] x 100
Subtract the new number by the original number
657 - 491 = 166
166 ÷ 491 = 0.3380855397148676
0.3380855397148676 x 100 = 33.81%