81.9% is the change from 536 to 975
Calculation steps:
[( 975 - 536 ) ÷ 536] x 100 = 81.9%
Formula
Percentage change = [(975 - 536) / 536] x 100
Subtract the new number by the original number
975 - 536 = 439
439 ÷ 536 = 0.8190298507462687
0.8190298507462687 x 100 = 81.9%