-21.66% is the change from 845 to 662
Calculation steps:
[( 662 - 845 ) ÷ 845] x 100 = -21.66%
Formula
Percentage change = [(662 - 845) / 845] x 100
Subtract the new number by the original number
662 - 845 = -183
-183 ÷ 845 = -0.2165680473372781
-0.2165680473372781 x 100 = -21.66%