-75.38% is the change from 849 to 209
Calculation steps:
[( 209 - 849 ) ÷ 849] x 100 = -75.38%
Formula
Percentage change = [(209 - 849) / 849] x 100
Subtract the new number by the original number
209 - 849 = -640
-640 ÷ 849 = -0.7538280329799765
-0.7538280329799765 x 100 = -75.38%