844.44% is the change from 18 to 170
Calculation steps:
[( 170 - 18 ) ÷ 18] x 100 = 844.44%
Formula
Percentage change = [(170 - 18) / 18] x 100
Subtract the new number by the original number
170 - 18 = 152
152 ÷ 18 = 8.444444444444445
8.444444444444445 x 100 = 844.44%