-67.73% is the change from 657 to 212
Calculation steps:
[( 212 - 657 ) ÷ 657] x 100 = -67.73%
Formula
Percentage change = [(212 - 657) / 657] x 100
Subtract the new number by the original number
212 - 657 = -445
-445 ÷ 657 = -0.6773211567732116
-0.6773211567732116 x 100 = -67.73%