-67.88% is the change from 657 to 211
Calculation steps:
[( 211 - 657 ) ÷ 657] x 100 = -67.88%
Formula
Percentage change = [(211 - 657) / 657] x 100
Subtract the new number by the original number
211 - 657 = -446
-446 ÷ 657 = -0.6788432267884322
-0.6788432267884322 x 100 = -67.88%