-83.26% is the change from 651 to 109
Calculation steps:
[( 109 - 651 ) ÷ 651] x 100 = -83.26%
Formula
Percentage change = [(109 - 651) / 651] x 100
Subtract the new number by the original number
109 - 651 = -542
-542 ÷ 651 = -0.8325652841781874
-0.8325652841781874 x 100 = -83.26%