-83.53% is the change from 917 to 151
Calculation steps:
[( 151 - 917 ) ÷ 917] x 100 = -83.53%
Formula
Percentage change = [(151 - 917) / 917] x 100
Subtract the new number by the original number
151 - 917 = -766
-766 ÷ 917 = -0.8353326063249727
-0.8353326063249727 x 100 = -83.53%