83.65% is the change from 312 to 573
Calculation steps:
[( 573 - 312 ) ÷ 312] x 100 = 83.65%
Formula
Percentage change = [(573 - 312) / 312] x 100
Subtract the new number by the original number
573 - 312 = 261
261 ÷ 312 = 0.8365384615384616
0.8365384615384616 x 100 = 83.65%