87.87% is the change from 511 to 960
Calculation steps:
[( 960 - 511 ) ÷ 511] x 100 = 87.87%
Formula
Percentage change = [(960 - 511) / 511] x 100
Subtract the new number by the original number
960 - 511 = 449
449 ÷ 511 = 0.8786692759295499
0.8786692759295499 x 100 = 87.87%