21.77% is the change from 657 to 800
Calculation steps:
[( 800 - 657 ) ÷ 657] x 100 = 21.77%
Formula
Percentage change = [(800 - 657) / 657] x 100
Subtract the new number by the original number
800 - 657 = 143
143 ÷ 657 = 0.2176560121765601
0.2176560121765601 x 100 = 21.77%