51.01% is the change from 543 to 820
Calculation steps:
[( 820 - 543 ) ÷ 543] x 100 = 51.01%
Formula
Percentage change = [(820 - 543) / 543] x 100
Subtract the new number by the original number
820 - 543 = 277
277 ÷ 543 = 0.5101289134438306
0.5101289134438306 x 100 = 51.01%