54.15% is the change from 591 to 911
Calculation steps:
[( 911 - 591 ) ÷ 591] x 100 = 54.15%
Formula
Percentage change = [(911 - 591) / 591] x 100
Subtract the new number by the original number
911 - 591 = 320
320 ÷ 591 = 0.5414551607445008
0.5414551607445008 x 100 = 54.15%