-21.68% is the change from 844 to 661
Calculation steps:
[( 661 - 844 ) ÷ 844] x 100 = -21.68%
Formula
Percentage change = [(661 - 844) / 844] x 100
Subtract the new number by the original number
661 - 844 = -183
-183 ÷ 844 = -0.21682464454976302
-0.21682464454976302 x 100 = -21.68%