-75.85% is the change from 857 to 207
Calculation steps:
[( 207 - 857 ) ÷ 857] x 100 = -75.85%
Formula
Percentage change = [(207 - 857) / 857] x 100
Subtract the new number by the original number
207 - 857 = -650
-650 ÷ 857 = -0.7584597432905484
-0.7584597432905484 x 100 = -75.85%