-77.12% is the change from 931 to 213
Calculation steps:
[( 213 - 931 ) ÷ 931] x 100 = -77.12%
Formula
Percentage change = [(213 - 931) / 931] x 100
Subtract the new number by the original number
213 - 931 = -718
-718 ÷ 931 = -0.7712137486573577
-0.7712137486573577 x 100 = -77.12%