-76.77% is the change from 934 to 217
Calculation steps:
[( 217 - 934 ) ÷ 934] x 100 = -76.77%
Formula
Percentage change = [(217 - 934) / 934] x 100
Subtract the new number by the original number
217 - 934 = -717
-717 ÷ 934 = -0.7676659528907923
-0.7676659528907923 x 100 = -76.77%