77.43% is the change from 288 to 511
Calculation steps:
[( 511 - 288 ) ÷ 288] x 100 = 77.43%
Formula
Percentage change = [(511 - 288) / 288] x 100
Subtract the new number by the original number
511 - 288 = 223
223 ÷ 288 = 0.7743055555555556
0.7743055555555556 x 100 = 77.43%