51.3% is the change from 575 to 870
Calculation steps:
[( 870 - 575 ) ÷ 575] x 100 = 51.3%
Formula
Percentage change = [(870 - 575) / 575] x 100
Subtract the new number by the original number
870 - 575 = 295
295 ÷ 575 = 0.5130434782608696
0.5130434782608696 x 100 = 51.3%