-19.33% is the change from 807 to 651
Calculation steps:
[( 651 - 807 ) ÷ 807] x 100 = -19.33%
Formula
Percentage change = [(651 - 807) / 807] x 100
Subtract the new number by the original number
651 - 807 = -156
-156 ÷ 807 = -0.19330855018587362
-0.19330855018587362 x 100 = -19.33%