-33.59% is the change from 920 to 611
Calculation steps:
[( 611 - 920 ) ÷ 920] x 100 = -33.59%
Formula
Percentage change = [(611 - 920) / 920] x 100
Subtract the new number by the original number
611 - 920 = -309
-309 ÷ 920 = -0.3358695652173913
-0.3358695652173913 x 100 = -33.59%