-77.44% is the change from 931 to 210
Calculation steps:
[( 210 - 931 ) ÷ 931] x 100 = -77.44%
Formula
Percentage change = [(210 - 931) / 931] x 100
Subtract the new number by the original number
210 - 931 = -721
-721 ÷ 931 = -0.7744360902255639
-0.7744360902255639 x 100 = -77.44%