-83.02% is the change from 913 to 155
Calculation steps:
[( 155 - 913 ) ÷ 913] x 100 = -83.02%
Formula
Percentage change = [(155 - 913) / 913] x 100
Subtract the new number by the original number
155 - 913 = -758
-758 ÷ 913 = -0.8302300109529025
-0.8302300109529025 x 100 = -83.02%