-69.19% is the change from 857 to 264
Calculation steps:
[( 264 - 857 ) ÷ 857] x 100 = -69.19%
Formula
Percentage change = [(264 - 857) / 857] x 100
Subtract the new number by the original number
264 - 857 = -593
-593 ÷ 857 = -0.691948658109685
-0.691948658109685 x 100 = -69.19%