-32.09% is the change from 913 to 620
Calculation steps:
[( 620 - 913 ) ÷ 913] x 100 = -32.09%
Formula
Percentage change = [(620 - 913) / 913] x 100
Subtract the new number by the original number
620 - 913 = -293
-293 ÷ 913 = -0.3209200438116101
-0.3209200438116101 x 100 = -32.09%