-29.3% is the change from 935 to 661
Calculation steps:
[( 661 - 935 ) ÷ 935] x 100 = -29.3%
Formula
Percentage change = [(661 - 935) / 935] x 100
Subtract the new number by the original number
661 - 935 = -274
-274 ÷ 935 = -0.293048128342246
-0.293048128342246 x 100 = -29.3%
Example