-3.18% is the change from 943 to 913
Calculation steps:
[( 913 - 943 ) ÷ 943] x 100 = -3.18%
Formula
Percentage change = [(913 - 943) / 943] x 100
Subtract the new number by the original number
913 - 943 = -30
-30 ÷ 943 = -0.031813361611876985
-0.031813361611876985 x 100 = -3.18%