87.77% is the change from 319 to 599
Calculation steps:
[( 599 - 319 ) ÷ 319] x 100 = 87.77%
Formula
Percentage change = [(599 - 319) / 319] x 100
Subtract the new number by the original number
599 - 319 = 280
280 ÷ 319 = 0.877742946708464
0.877742946708464 x 100 = 87.77%