78.63% is the change from 510 to 911
Calculation steps:
[( 911 - 510 ) ÷ 510] x 100 = 78.63%
Formula
Percentage change = [(911 - 510) / 510] x 100
Subtract the new number by the original number
911 - 510 = 401
401 ÷ 510 = 0.7862745098039216
0.7862745098039216 x 100 = 78.63%