-39.34% is the change from 849 to 515
Calculation steps:
[( 515 - 849 ) ÷ 849] x 100 = -39.34%
Formula
Percentage change = [(515 - 849) / 849] x 100
Subtract the new number by the original number
515 - 849 = -334
-334 ÷ 849 = -0.3934040047114252
-0.3934040047114252 x 100 = -39.34%