50.09% is the change from 547 to 821
Calculation steps:
[( 821 - 547 ) ÷ 547] x 100 = 50.09%
Formula
Percentage change = [(821 - 547) / 547] x 100
Subtract the new number by the original number
821 - 547 = 274
274 ÷ 547 = 0.5009140767824497
0.5009140767824497 x 100 = 50.09%