-45.65% is the change from 850 to 462
Calculation steps:
[( 462 - 850 ) ÷ 850] x 100 = -45.65%
Formula
Percentage change = [(462 - 850) / 850] x 100
Subtract the new number by the original number
462 - 850 = -388
-388 ÷ 850 = -0.45647058823529413
-0.45647058823529413 x 100 = -45.65%