-77.01% is the change from 935 to 215
Calculation steps:
[( 215 - 935 ) ÷ 935] x 100 = -77.01%
Formula
Percentage change = [(215 - 935) / 935] x 100
Subtract the new number by the original number
215 - 935 = -720
-720 ÷ 935 = -0.7700534759358288
-0.7700534759358288 x 100 = -77.01%