-60.27% is the change from 657 to 261
Calculation steps:
[( 261 - 657 ) ÷ 657] x 100 = -60.27%
Formula
Percentage change = [(261 - 657) / 657] x 100
Subtract the new number by the original number
261 - 657 = -396
-396 ÷ 657 = -0.6027397260273972
-0.6027397260273972 x 100 = -60.27%