64.85% is the change from 515 to 849
Calculation steps:
[( 849 - 515 ) ÷ 515] x 100 = 64.85%
Formula
Percentage change = [(849 - 515) / 515] x 100
Subtract the new number by the original number
849 - 515 = 334
334 ÷ 515 = 0.6485436893203883
0.6485436893203883 x 100 = 64.85%