831.58% is the change from 19 to 177
Calculation steps:
[( 177 - 19 ) ÷ 19] x 100 = 831.58%
Formula
Percentage change = [(177 - 19) / 19] x 100
Subtract the new number by the original number
177 - 19 = 158
158 ÷ 19 = 8.31578947368421
8.31578947368421 x 100 = 831.58%