-34.61% is the change from 913 to 597
Calculation steps:
[( 597 - 913 ) ÷ 913] x 100 = -34.61%
Formula
Percentage change = [(597 - 913) / 913] x 100
Subtract the new number by the original number
597 - 913 = -316
-316 ÷ 913 = -0.34611171960569553
-0.34611171960569553 x 100 = -34.61%