28.77% is the change from 636 to 819
Calculation steps:
[( 819 - 636 ) ÷ 636] x 100 = 28.77%
Formula
Percentage change = [(819 - 636) / 636] x 100
Subtract the new number by the original number
819 - 636 = 183
183 ÷ 636 = 0.28773584905660377
0.28773584905660377 x 100 = 28.77%