-76.43% is the change from 857 to 202
Calculation steps:
[( 202 - 857 ) ÷ 857] x 100 = -76.43%
Formula
Percentage change = [(202 - 857) / 857] x 100
Subtract the new number by the original number
202 - 857 = -655
-655 ÷ 857 = -0.764294049008168
-0.764294049008168 x 100 = -76.43%