-66.3% is the change from 92 to 31
Calculation steps:
[( 31 - 92 ) ÷ 92] x 100 = -66.3%
Formula
Percentage change = [(31 - 92) / 92] x 100
Subtract the new number by the original number
31 - 92 = -61
-61 ÷ 92 = -0.6630434782608695
-0.6630434782608695 x 100 = -66.3%