-63.25% is the change from 849 to 312
Calculation steps:
[( 312 - 849 ) ÷ 849] x 100 = -63.25%
Formula
Percentage change = [(312 - 849) / 849] x 100
Subtract the new number by the original number
312 - 849 = -537
-537 ÷ 849 = -0.6325088339222615
-0.6325088339222615 x 100 = -63.25%