-26.53% is the change from 833 to 612
Calculation steps:
[( 612 - 833 ) ÷ 833] x 100 = -26.53%
Formula
Percentage change = [(612 - 833) / 833] x 100
Subtract the new number by the original number
612 - 833 = -221
-221 ÷ 833 = -0.2653061224489796
-0.2653061224489796 x 100 = -26.53%