-33.37% is the change from 917 to 611
Calculation steps:
[( 611 - 917 ) ÷ 917] x 100 = -33.37%
Formula
Percentage change = [(611 - 917) / 917] x 100
Subtract the new number by the original number
611 - 917 = -306
-306 ÷ 917 = -0.3336968375136314
-0.3336968375136314 x 100 = -33.37%