-70.02% is the change from 657 to 197
Calculation steps:
[( 197 - 657 ) ÷ 657] x 100 = -70.02%
Formula
Percentage change = [(197 - 657) / 657] x 100
Subtract the new number by the original number
197 - 657 = -460
-460 ÷ 657 = -0.700152207001522
-0.700152207001522 x 100 = -70.02%