-18.59% is the change from 807 to 657
Calculation steps:
[( 657 - 807 ) ÷ 807] x 100 = -18.59%
Formula
Percentage change = [(657 - 807) / 807] x 100
Subtract the new number by the original number
657 - 807 = -150
-150 ÷ 807 = -0.18587360594795538
-0.18587360594795538 x 100 = -18.59%