-94.75% is the change from 857 to 45
Calculation steps:
[( 45 - 857 ) ÷ 857] x 100 = -94.75%
Formula
Percentage change = [(45 - 857) / 857] x 100
Subtract the new number by the original number
45 - 857 = -812
-812 ÷ 857 = -0.9474912485414235
-0.9474912485414235 x 100 = -94.75%