99.3% is the change from 286 to 570
Calculation steps:
[( 570 - 286 ) ÷ 286] x 100 = 99.3%
Formula
Percentage change = [(570 - 286) / 286] x 100
Subtract the new number by the original number
570 - 286 = 284
284 ÷ 286 = 0.993006993006993
0.993006993006993 x 100 = 99.3%