Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| City | State | 2010 population | Peak population (year) | Numeric decline from peak population | Percent decline from peak population |
| --- | --- | --- | --- | --- | --- |
| Albany | New York | 97856 | 134995 (1950) | -37,139 | -27.51% |
| Allegheny | Pennsylvania | N/A | 129896 (1900) | – | – |
| Brooklyn | New York | N/A | 806,343 (1890) | – | – |
| Camden | New Jersey | 77344 | 124555 (1950) | -47,211 | -37.90% |
| Canton | Ohio | 73007 | 116912 (1950) | -43,905 | -37.55% |
| Dearborn | Michigan | 98153 | 112007 (1960) | -13,854 | -12.37% |
| Duluth | Minnesota | 86265 | 107312 (1960) | -21,047 | -19.61% |
| Fall River | Massachusetts | 88857 | 120485 (1920) | -31,628 | -26.25% |
| Gary | Indiana | 80294 | 178320 (1960) | -98,026 | -54.97% |
| Hammond | Indiana | 80830 | 111698 (1960) | -30,868 | -27.64% |
| Livonia | Michigan | 96942 | 110109 (1970) | -13,167 | -11.96% |
| Lynn | Massachusetts | 90329 | 102320 (1930) | -11,991 | -11.72% |
| Macon | Georgia | 91351 | 122423 (1970) | -31,072 | -25.38% |
| New Bedford | Massachusetts | 95072 | 121217 (1920) | -26,145 | -21.57% |
| Niagara Falls | New York | 50194 | 102394 (1960) | -52,200 | -50.98% |
| Parma | Ohio | 81601 | 100216 (1970) | -18,615 | -18.57% |
| Portsmouth | Virginia | 95535 | 114773 (1960) | -19,238 | -16.76% |
| Reading | Pennsylvania | 88082 | 111171 (1930) | -23,089 | -20.77% |
| Roanoke | Virginia | 97032 | 100220 (1980) | -3,188 | -3.18% |
| Scranton | Pennsylvania | 76089 | 143333 (1930) | -67,244 | -46.91% |
| Somerville | Massachusetts | 75754 | 103908 (1930) | -28,154 | -27.10% |
| St. Joseph | Missouri | 76780 | 102979 (1900) | -26,199 | -25.44% |
| Trenton | New Jersey | 84913 | 128009 (1950) | -43,096 | -33.67% |
| Utica | New York | 62235 | 101740 (1930) | -39,505 | -38.83% |
| Wilmington | Delaware | 70851 | 112504 (1940) | -41,653 | -37.02% |
| Youngstown | Ohio | 66982 | 170002 (1930) | -103,020 | -60.60% |
Question:
what is the percent decline from peak population when the peak population (year) is 178320 (1960)?
Answer:
-54.97%