-19.29% is the change from 814 to 657
Calculation steps:
[( 657 - 814 ) ÷ 814] x 100 = -19.29%
Formula
Percentage change = [(657 - 814) / 814] x 100
Subtract the new number by the original number
657 - 814 = -157
-157 ÷ 814 = -0.1928746928746929
-0.1928746928746929 x 100 = -19.29%