-83.87% is the change from 651 to 105
Calculation steps:
[( 105 - 651 ) ÷ 651] x 100 = -83.87%
Formula
Percentage change = [(105 - 651) / 651] x 100
Subtract the new number by the original number
105 - 651 = -546
-546 ÷ 651 = -0.8387096774193549
-0.8387096774193549 x 100 = -83.87%