61.49% is the change from 509 to 822
Calculation steps:
[( 822 - 509 ) ÷ 509] x 100 = 61.49%
Formula
Percentage change = [(822 - 509) / 509] x 100
Subtract the new number by the original number
822 - 509 = 313
313 ÷ 509 = 0.6149312377210217
0.6149312377210217 x 100 = 61.49%